土壤学

田间试验 field experiment

题目

田间试验 field experiment

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相似问题和答案

第1题:

田间试验的特点是( )。

A.田间试验的条件与大田条件十分接近

B.田间试验通常在较小面积上进行

C.不必考虑因试验失败造成大的损失

D.以上答案都对


正确答案:D

第2题:

田间试验的特点是()

A田间试验的条件与大田条件十分接近

B田间试验通常在较小面积上进行

C不必考虑因试验失败造成大的损失

D以上答案都对


D

第3题:

After the experiment, we will talk about our observation. (对画线部分提问)

_____will you____ after the experiment?

 


What, do  

第4题:

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 

正确答案:D

第5题:

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.

正确答案:A

第6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.


A

第7题:

在进行田间试验之前,必须制定(),它是整个试验活动的依据

A田间试验计划

B田间种植图

C观测记载表

D田间种植计划


A

第8题:

The experiment __________,the students went on to take notes in the experiment report.

A、do

B、does

C、doing

D、done


正确答案:D

第9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? ()

  • A、The PRI field should contain the Cos value of 010
  • B、The PRI field should contain the Cos value of 011
  • C、The PRI field should contain the Cos value of 100
  • D、The PRI field should contain the Cos value of 101
  • E、The PRI field should contain the Cos value of 110
  • F、The PRI field should contain the CoS value of 111

正确答案:D

第10题:

田间试验设计的原则()、()、局部控制。


正确答案:重复;随机排列

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