单选题We must（）that the experiment is controlled as rigidly as possible.AassureBsecureCensureDissue
单选题
We must（）that the experiment is controlled as rigidly as possible.
A
assure
B
secure
C
ensure
D
issue
参考解析
解析：
暂无解析
相关考题：
The city government must take action( )the increasing populating. A. to controlB. controllingC. controlsD. controlled
After the experiment, we willtalk about our observation. (对画线部分提问)_____will you____ after the experiment?
AThe aim(目的) of students who come to school is ro srudy． But if we haven't a right way to study we will waste the time or the money． The following are ways for studying．The best time for reading js morning． Because in the morning， the air is fresh and our minds are clear．For that reason，we can get good results．Jt- studying we must be'patient(耐心的)． If w．e don't understand a text well，we must read it again． We should not read the next one till we have learned the first one well．When we are studying，we must put our hearts into the book． We can not read absent-．mindedly(心不在焉地) ，or we can get nothing from the book while we are reading．We must always ask "whys"． If it is not well understood，write it down and ask our teach-ers or parents，brothers or friends，in any possible way． We must know it completely and then our knowledge can be used well．Though there are many ways for studying，however，the above mentioned(提及的) will be quite enough if we can keep them in heart and do so，( )21． The article tells us_________A． to read in the morningB． to pay close attention to ways for studyingC． the importance of readingD． to have patience in studying
We must _______ that the experiment is controlled as rigidly as possible. A.assureB.ensureC.secureD.insure
We believe we must increase our export sales if we want to continue to grow, and we hope to increase exports to 40 % of production.
We must ()that the experiment is controled as rididly as possible. A、ensureB、issueC、assureD、secure
We must do something to stop the pollution, and ______ we must make all the people realize how serious the problem is. A.after allB.above allC.in allD.at all
30． What is the passage mainly about? 、A． We must make more friends．B． Don-t quarrel with our parents．C． What should we do when our parents quarrel．D． Sometimes we must stay away from our parents．
You must explain（）how they succeeded（）the experiment.A、of us；forB、at us；atC、to us；inD、for us；to
我们必须仔细使用每件工具并且用完后归还。（）A、We must use all kinds of tools carefully and return it after using.B、We must use every tool carefully and return it after using.C、A+BD、We must use everything carefully and keep it after using.
单选题No matter whatever happens, we're determined to do our best and make the experiment a success.Awhatever happensBdo our bestCmakeDa success
单选题The information flow of the MSI broadcast must be controlled（）.Ato avoid mutual interferenceBto keep silenceCowing to the time-share natureDto regulate transmitter power
单选题It was ______ the chief engineer came ______ we began the experiment.Anot until; that Bnot until; then Cuntil; that Duntil; when
单选题______ the temperature falling so rapidly, we couldn’t go on with the experiment.ASinceBForCAsDWith
单选题If remote-controlled cars are more expensive than mechanical cars, and radio-controlled cars are more expensive than remote-controlled cars, which of the following statements must be true?AMechanical cars are the most expensive.BRadio-controlled cars are the most expensive.CRadio-controlled cars are cheaper than remote-controlled cars.DMechanical cars are more expensive than remote-controlled cars.