Training astronauts______not an easy thing.

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问题 Training astronauts______not an easy thing.

选项 A、are
B、is
C、were
D、be

答案B

解析句意：训练宇航员可不是件容易的事。该题考查的是主谓一致。当主语是个抽象的概念时谓语动词用单数。

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本试题收录于：英语题库普高专升本分类

英语

普高专升本

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Training astronauts______not an easy thing.

英语

普高专升本

a，b为两个非零向量，λ为非零常数，若向量a+λb垂直于向量b，则λ等于________。

已知函数f(x)=alnx+bx2+x在x=1与x=2处有极值，则a=。，b=。

Haveyou【B1】askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】theirownlanguagea

About70millionAmericansaretryingtoloseweight.Thatisalmost1outofevery3peopleintheUnitedStates.Somepeopleg

TheRedCrossis【B1】organizationwhichcaresforpeoplewhoarein【B2】ofhelp.AmaninaParishospitalwhonee

Sunglassescanhelpyoureyesintwoimportantways.Theyimprovethenormallightfilteringabilitiesofyoureyesandtheypro

Intoday’scompetitivejobmarket,studentsarelookingfordegreesoutsidetheirhomecountriestopositionthemselvesasgloba

Yourhairneeds______.You’dbetterhaveitdonetomorrow.

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交易标准化协议达成后，在未来某一特定时间，如几周、几个月之后才办理交割的交易是()。

由已知关系式f[xg(y)，y]＝x＋g(y)两边对x求二次偏导，有[*]

以太网物理地址的长度是______。

若有以下程序：#include＜stdio．h＞main(){inta=6，b=0，c=0；for(；a；){b+=a；a一=++c；)printf("％d，％d，％d＼n"，a，b，c)；}

You’dbetter_________thewateruntilithasbeenboiled.

Lifeisdifficult.Itisagreattruthbecauseoncewetrulyunderstandandacceptit,thenlifeisnolongerdifficult.

Training astronauts______not an easy thing.

英语

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交易标准化协议达成后，在未来某一特定时间，如几周、几个月之后才办理交割的交易是()。

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You’dbetter_________thewateruntilithasbeenboiled.

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