单选题_____A recallB understandC realizeD perceive

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单选题

_____

recall

understand

realize

perceive

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第1题：

We often () the happy time we spent at your hometown last summer.

A.recall

B.remind

C.present

D.provide

参考答案：A

第2题：

在常见的效果器面板上,()表示呼出键。

A、RECALL

B、DECAY

C、PREAMP

D、PHASE

参考答案：A

第3题：

Only when he was put in prison, ____ how silly he was and what a serious harm he had did to her.

A.should he have realize

B.he realized

C.did he realize

D.he had realized

参考答案：C

第4题：

请在第29处填上正确答案。

A．recall

B．realize

C．examine

D．remember

正确答案：B
一个电视节目使作者意识到了自己的错误，因此选realize。A项recall“回忆”；C项examine“检验”，都不合逻辑，不能表明作者的情感变化。故选B。

第5题：

Unfortunately he could not ______ the danger at that time.

A、prepare

B、pretend

C、perform

D、perceive

参考答案：D

第6题：

Only when I began to do it ____ that I had made a mistake.

A I realized B I had realized C did I realize D would I realize

正确答案：C

第7题：

I fail to _____ ever meeting her.

A、recall

B、pretend

C、plan

D、hope

参考答案：A

第8题：

Not until the recent years ___the importance of mastering a foreign language.

A. people realized

B. realized people

C. did people realize

D. had people realized

参考答案：C

第9题：

执行如下命令： USE 职工 DELETE FOR 性别=“女” 若要去除所有删除记录的标记，应该使用的命令是( )。

A．RECALL

B．RECALL ALL

C．RELEASE

D．REALSE ALL

正确答案：B
解析：被逻辑删除的记录即做了删除标记的记录可以用命令RECALL恢复，具体语法格式如下：
RECALL[Scope][FOR 1Expressionl][WHILElExpression2][IN nWorkAreca|cTableAlias]
Scope指定要恢复记录的范围。Scope子句有：ALL、NEXT nRecords和RECORD nRecords，默认范围时当前记录：FOR IExpressionl指定只恢复满足表达式1Expressionl的所有记录：WHILE 1Expression2指定恢复满足表达式1Expression2的记录；IN nWorkAreca指定表所在的工作区：cTableAlias指定标的别名。
本题去除所有删除记录的标记，应该使用ALL短语。

第10题：

Only when the CIA Director David was forced to resignthat it's hard to keep our e-mail secret.

A．we realized
B．realized we
C．did we realize
D．we did realize

答案：C

解析：

考查倒装句。在以“only+状语”开头的句子中，句子要使用部分倒装，助动词要放在主语前。故选C。

单选题_____A recallB understandC realizeD perceive

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