People with circulatory problems often have cold feet and hands, because heat moves between the ( ) and the ( ) as the blood flows. A、headB、heartC、bloodD、cells
People with circulatory problems often have cold feet and hands, because heat moves between the ( ) and the ( ) as the blood flows.
A、head
B、heart
C、blood
D、cells
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共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(8) A:stops B:finds C:controls D:selects
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(10)A:ideas B:news C:memory D:images
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(5)A:button B:door C:system D:activity
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(7)A:different B:narrow C:same D:right
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(13) A:investigation B:prevention C:rate D:report
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(3)A:change B:observe C:improve D:meet
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(9)A:quickly B:cleverly C:virtually D:safely
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(12)A:action B:role C:decision D:notice
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(6)A:calculates B:reaches C:gathers D:reduces
共用题干An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, and coordination（协调）between hands and the brain.Many human drivers have all_________(1)and can control a fast-moving car. But how does an intelligent car control itself?There is a virtual（虚拟的）driver in the smart car. This virtual driver has "eyes", "brains","hands"and"feet",too.The minicameras_________(2)each side of the car are his"eyes",which_________(3)the road conditions ahead of it.They watchthe_________(4)to the car's left and right.There is also a highly automatic driving _________(5)in the car. It is the built-in computer,which is the virtual driver's "brain".His"brain"_________(6)the speeds of other moving cars near it andanalyzes their positions.Basing on this information,it chooses the_________(7)path for the intelligent car,and gives instructions to the"hands"and"feet"to act accordingly. In this way,the virtual driver_________(8)his car.What is the virtual driver's best advantage?He reacts_________(9).The minicameras are bringing_________(10)continuously to the"brain".It completes the processing of the images within 100 milliseconds._________(11),the world's best driver needs at least one second to react.Besides,when he takes_________(12),he needs one more second.The virtual driver is really wonderful.He can reduce the accident_________(13) considerably on expressways（高速公路）.In this_________(14),can we let him have the wheel at any time and in any place?Experts_________(15)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways._________(11)A:So B:However C:Besides D:Therefore