The most powerful signal of stress is a change of pitch on the vowel.（）
The most powerful signal of stress is a change of pitch on the vowel.（）
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They also warn that these countries are among the most _________ to climate change.AlaxBvulnerableCaddictiveDnasty
Of the following, the most important consideration for a tank vessel is ______.A.GMB.the vertical center of gravityC.the longitudinal center of gravityD.the stress on the hull
_____ of the controllable pitch propeller enables the blades to be moved to change the pitch angleA.An external mechanismB.An internal mechanismC.An interlock deviceD.A hunting gear system
________is the most visible signal of distress from a lifeboat at sea in the daytime.A.Smoke signalB.Flash signalC.Fire signalD.Radio emergency transmission
Of the following，the most important consideration for a tanker is ______．A.GMB.The vertical center of gravityC.The longitudinal center of gravityD.The stress on the hull
Most modern Loran-C receivers，when not tracking properly，have a（n）______．A.Bell alarm to warn the userB.Lighted alarm signal to warn the userC.Alternate signal keying systemD.View finder for each station
Body language is a powerful communication system,__________it can signal very different things.A．butB．soC．forD．then
资料：Stress is a common factor in life. Children experience stress from school, new social situations and simply growing up. Adults feel the stress of working, paying bills, raising kids and maintaining households. Seniors also feel stress, even though some may have retired, raised their children and paid off their homes. Certain amounts of stress are a part of life for people of all ages.For seniors, stress has the potential to be especially overwhelming. This type of tension in older adults has unique contributing factors, such as the loss of an elderly spouse or friends. Living alone can increase the sense of isolation. Sometimes the simple tasks of everyday life can cause stress in those who experience physical or medical limitations. The effects of stress can sometimes exacerbate health conditions from which some seniors suffer, causing additional worry.Stress can be detected in various ways. You may follow the five most common ways to find out if a loved one’s stress is cause for concern:1. Changes in eating habits, such as over-eating or loss of appetite, can be caused by overwhelming stress.2. Mood swings due to stress may present in increased irritability, general sadness or depression.3. Memory issues may arise in the form of increased forgetfulness of names, places or other things that normally come naturally. Lack of concentration may become a problem. Some seniors may exercise poor judgment, such as excessive spending when they are already on a limited budget.4. Physical signs of stress can include body aches and pains or increased episodes of illness. Changes in sleeping patterns—either trouble falling asleep or interrupted nighttime sleep—can signal significant stress.5. Seniors experiencing overwhelming stress often isolate themselves from others, refusing to socialize or participate in activities they used to enjoy.What does the word “exacerbate”（Line 4, Paragraph 2） probably mean?A.AffectB.ImproveC.IntensifyD.Worsen
资料：Stress is a common factor in life. Children experience stress from school, new social situations and simply growing up. Adults feel the stress of working, paying bills, raising kids and maintaining households. Seniors also feel stress, even though some may have retired, raised their children and paid off their homes. Certain amounts of stress are a part of life for people of all ages.For seniors, stress has the potential to be especially overwhelming. This type of tension in older adults has unique contributing factors, such as the loss of an elderly spouse or friends. Living alone can increase the sense of isolation. Sometimes the simple tasks of everyday life can cause stress in those who experience physical or medical limitations. The effects of stress can sometimes exacerbate health conditions from which some seniors suffer, causing additional worry.Stress can be detected in various ways. You may follow the five most common ways to find out if a loved one’s stress is cause for concern:1. Changes in eating habits, such as over-eating or loss of appetite, can be caused by overwhelming stress.2. Mood swings due to stress may present in increased irritability, general sadness or depression.3. Memory issues may arise in the form of increased forgetfulness of names, places or other things that normally come naturally. Lack of concentration may become a problem. Some seniors may exercise poor judgment, such as excessive spending when they are already on a limited budget.4. Physical signs of stress can include body aches and pains or increased episodes of illness. Changes in sleeping patterns—either trouble falling asleep or interrupted nighttime sleep—can signal significant stress.5. Seniors experiencing overwhelming stress often isolate themselves from others, refusing to socialize or participate in activities they used to enjoy.Which of the following is NOT true about stress according to the passage?A.Changing schools may cause children’s stress.B.Seniors would feel stress of paying mortgage.C.Grown-ups would get stress from raising kids.D.Loss of a friend may be the source of stress for seniors.
资料：Stress is a common factor in life. Children experience stress from school, new social situations and simply growing up. Adults feel the stress of working, paying bills, raising kids and maintaining households. Seniors also feel stress, even though some may have retired, raised their children and paid off their homes. Certain amounts of stress are a part of life for people of all ages.For seniors, stress has the potential to be especially overwhelming. This type of tension in older adults has unique contributing factors, such as the loss of an elderly spouse or friends. Living alone can increase the sense of isolation. Sometimes the simple tasks of everyday life can cause stress in those who experience physical or medical limitations. The effects of stress can sometimes exacerbate health conditions from which some seniors suffer, causing additional worry.Stress can be detected in various ways. You may follow the five most common ways to find out if a loved one’s stress is cause for concern:1. Changes in eating habits, such as over-eating or loss of appetite, can be caused by overwhelming stress.2. Mood swings due to stress may present in increased irritability, general sadness or depression.3. Memory issues may arise in the form of increased forgetfulness of names, places or other things that normally come naturally. Lack of concentration may become a problem. Some seniors may exercise poor judgment, such as excessive spending when they are already on a limited budget.4. Physical signs of stress can include body aches and pains or increased episodes of illness. Changes in sleeping patterns—either trouble falling asleep or interrupted nighttime sleep—can signal significant stress.5. Seniors experiencing overwhelming stress often isolate themselves from others, refusing to socialize or participate in activities they used to enjoy.What's the main theme of the passage?A.Stress is experienced by everyone.B.Stress is common and can be detected.C.Stress cannot be prevented.D.Stress is everywhere and hard to deal with.
资料：Stress is a common factor in life. Children experience stress from school, new social situations and simply growing up. Adults feel the stress of working, paying bills, raising kids and maintaining households. Seniors also feel stress, even though some may have retired, raised their children and paid off their homes. Certain amounts of stress are a part of life for people of all ages.For seniors, stress has the potential to be especially overwhelming. This type of tension in older adults has unique contributing factors, such as the loss of an elderly spouse or friends. Living alone can increase the sense of isolation. Sometimes the simple tasks of everyday life can cause stress in those who experience physical or medical limitations. The effects of stress can sometimes exacerbate health conditions from which some seniors suffer, causing additional worry.Stress can be detected in various ways. You may follow the five most common ways to find out if a loved one’s stress is cause for concern:1. Changes in eating habits, such as over-eating or loss of appetite, can be caused by overwhelming stress.2. Mood swings due to stress may present in increased irritability, general sadness or depression.3. Memory issues may arise in the form of increased forgetfulness of names, places or other things that normally come naturally. Lack of concentration may become a problem. Some seniors may exercise poor judgment, such as excessive spending when they are already on a limited budget.4. Physical signs of stress can include body aches and pains or increased episodes of illness. Changes in sleeping patterns—either trouble falling asleep or interrupted nighttime sleep—can signal significant stress.5. Seniors experiencing overwhelming stress often isolate themselves from others, refusing to socialize or participate in activities they used to enjoy.If you find your friend ______, that means he/she may be under great stress.A.becomes irritable and sleeplessB.doesn’t want to go shopping anymoreC.begins to favor drinks of a new brandD.hates socializing with others
Life magazine chose Oprah____the wife of the president as “America’s Most Powerful woman”.A.aboveB.overC.beyondD.beside
A client states they are receiving poor signal strength on their wireless Internet connection. Which of the following is MOST likely causing the interference?（）A、Cordless phonesB、DrywallC、Access pointsD、MicrowavesE、Fluorescents lights
Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）A、The wireless card must be calibrated to the laptop.B、The correct preshared encryption key must be installed to boost the signal.C、The MAC address of the new wireless card will have to be added to the WAP to get the full signal.D、The antenna wires for the wireless card were not attached.
单选题An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（）AFire a red flare at night or a red smoke signal by dayBSend the Morse signal N by flashing lightCMake a round turn (360°) and resume courseDMake an S turn (hard right then hard left) and resume course
单选题For vessels with （）, the meaning of the order would include the combination of pitch and revolutions as indicated in ships orders.Afixed pitch propellersBuncontrollable pitch propellerCconstant pitch propellersDvariable pitch propellers
单选题（）is the most visible signal of distress from a lifeboat at sea in the daytime.ASmoke signalBFlash signalCFire signalDRadio emergency transmission
填空题The world’s most extensive research effort on climate change is now regulated by the U.S. Global Change Research Program.____
单选题0f the following, the most important consideration for a tank vessel is（）.AGMBthe vertical center of gravityCthe longitudinal center of gravityDthe stress on the hull
单选题The development of the container system（）.Amakes a cargo reach the farthest destinationBmakes the ship go as far as she canCis the most significant change in shipping industryDis the most economical change in shipping industry
单选题Most modern Loran-C receivers，when not tracking properly，have a（n）（）.ABell alarm to warn the userBLighted alarm signal to warn the userCAlternate signal keying systemDView finder for each station
单选题Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）AThe wireless card must be calibrated to the laptop.BThe correct preshared encryption key must be installed to boost the signal.CThe MAC address of the new wireless card will have to be added to the WAP to get the full signal.DThe antenna wires for the wireless card were not attached.
多选题A client states they are receiving poor signal strength on their wireless Internet connection. Which of the following is MOST likely causing the interference?（）ACordless phonesBDrywallCAccess pointsDMicrowavesEFluorescents lights
单选题Why do some frogs change the pitch of its calls?ATo be different from others.BTo attract a female frog.CTo tend out messages.DTo go against traffic noises.