田间试验 field experiment
田间试验 field experiment
相关考题：
After the experiment, we willtalk about our observation. (对画线部分提问)_____will you____ after the experiment?
The experiment __________，the students went on to take notes in the experiment report.A、doB、doesC、doingD、done
Which of the following statements is NOT true?（）AThe open field system provided a good opportunity to experiment.BThe open field system wasted land.CThe open field system was wasteful of labor and time.DThe open field system made livestock farming difficult.
Which of the following statements is NOT true?（）A、The open field system provided a good opportunity to experiment.B、The open field system wasted land.C、The open field system was wasteful of labor and time.D、The open field system made livestock farming difficult.
To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）A、The PRI field should contain the Cos value of 010B、The PRI field should contain the Cos value of 011C、The PRI field should contain the Cos value of 100D、The PRI field should contain the Cos value of 101E、The PRI field should contain the Cos value of 110F、The PRI field should contain the CoS value of 111
Yuri created a formula for a button. The code is supposed to set the value of an existing field called title. He used the following formula: title:= @propercase (title); after the foumula runs ,the title field is null. Why? （）A、the value of one field cannot be set from the value in another field B、the text string in the formula is set to null. Thus notes cannot validate the formula C、when setting the value of a field , the formula must be in the field‟s input validation event D、the formula does not specify that title is an existing field. Thus it is interpreted as a temporary variable
Which of the following is true about the MPLS header and its EXP field size？（）A、The MPLS header is 2 bytes，and the EXP field is 3 bits long.B、The MPLS header is 1 byte，and the EXP field is 3 bits long.C、The MPLS header is 4 bytes，and the EXP field is 3 bits long.D、The MPLS header is 3 bytes，and the EXP field is 3 bits long.
jim has created a field hint for the address field. Users tell him this text disappears when they click in the address field. which one of the following is most likely reason?（）A、 the address field is computed B、 jim should have used a text popup C、 jim stored the field hint in the database D、 field hint only display when the user has not clicked in the field （field hint）
You are developing a Windows Forms application that contains a DataGridView control. The DataGridView capture the customer's name, address, and phone number. You have been asked to provide data validation in a DataGridView to prevent users from leaving the.. You need to ensure that users cannot tab out of the name field without entering data What should you do ?（）A、Validate the name field in the CellValidating event. Set e.Cancel = true if the name field isB、Validate the name field in the CellErrorTextChanged event. Get e.RowIndex if the name field ..C、Validate the name field in the CellEnter event. Set the focus on the name field if the name ...D、Validate the name field in the CancelRowEdit event. Set the focus on the name field if the name ...
单选题jim has created a field hint for the address field. Users tell him this text disappears when they click in the address field. which one of the following is most likely reason?（）A the address field is computed B jim should have used a text popup C jim stored the field hint in the database D field hint only display when the user has not clicked in the field （field hint）
单选题To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）AThe PRI field should contain the Cos value of 010BThe PRI field should contain the Cos value of 011CThe PRI field should contain the Cos value of 100DThe PRI field should contain the Cos value of 101EThe PRI field should contain the Cos value of 110FThe PRI field should contain the CoS value of 111
单选题The most common type of AC service generator found aboard ship is the stationary （）.Aelectromagnetic field, revolving armature typeBelectromagnetic field, oscillatory armature typeCarmature, oscillatory electromagnet field typeDarmature, rotating electromagnetic field type
单选题Adam Smith was a professor of philosophy, a commissioner of customs, and founded the field of modern economics.Aa commissioner of customs, and founded the field of modem economicsBworked as commissioner of customs, and founded the field of modern economicsCa commissioner of customs, and the founder of the field of modern economicsDcommissioned customs, and was the founder of the field of modern economicsEa commissioner of customs, and was the founder of the field of modem economics
单选题_____ people found out the behavior of electricity.AThrough experiment thatBThrough experiment it wasCIt was through that experimentDIt was through experiment that
单选题Which of the following is true about the MPLS header and its EXP field size？（）AThe MPLS header is 2 bytes，and the EXP field is 3 bits long.BThe MPLS header is 1 byte，and the EXP field is 3 bits long.CThe MPLS header is 4 bytes，and the EXP field is 3 bits long.DThe MPLS header is 3 bytes，and the EXP field is 3 bits long.
单选题Which of the following statements is NOT true?（）AThe open field system provided a good opportunity to experiment.BThe open field system wasted land.CThe open field system was wasteful of labor and time.DThe open field system made livestock farming difficult.