船舶水手考试

Where are the life-jackets for the duty personnel?()A、They are in the chief officer’s cabin.B、They are in the store room.C、They are in the control room.D、They are in the engine room.

题目

Where are the life-jackets for the duty personnel?()

  • A、They are in the chief officer’s cabin.
  • B、They are in the store room.
  • C、They are in the control room.
  • D、They are in the engine room.
参考答案和解析
正确答案:C
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相似问题和答案

第1题:

Nowadays teenagers like to go to the fast food restaurants,() as the name says, eating doesn’t take much time.

A、which

B、who

C、what

D、where


参考答案:D

第2题:

6.—Where _______the chairs?

—Sorry,l don-t know.

A.are

B.am

C.is

D.be


正确答案:A
6.A【解析】句中的名词c hair是复数形式,因此 be动词甩相应的复数。

第3题:

I don’t know where ( )going.

A. will she

B. she will

C. is she

D. she is


正确答案:D

第4题:

She didn’t remember very well where she learned the analogy of “Where are the string beans of yesterday?” (Philosophers Among Carrots) ()

此题为判断题(对,错)。


正确答案:T

第5题:

Where's the boy? We can’t ________c找到) him.


正确答案:
  32. find

第6题:

统计教师号为“T1101”和“T1102”的教师授课的门数,并将查询的结果合并成一个结果集。请填空补充下面的SELECT语句: SELECT教师号,【 】AS授课门数; FROM 授课表WHERE教师号="T1101" GROUP BY教师号; 【 】; SELECT教师号,COUNT(*)AS授课门数; FROM课表WHERE【 】GROUP BY教师号


正确答案:COUNT(*) UNION 教师号="T1102"
COUNT(*),UNION,教师号="T1102"

第7题:

Cindy: if you don't like where you're living, why don't just move?

Joe: ______


正确答案:G

    57.答案为G  首先应读懂上文,后进行逻辑推理,选择填充词句。  亡文意为“如果你不喜欢你现在住的地方,为什么不搬走?”下文意为“谈何容易。”上句中的just用来加强语气。

第8题:

找出sb表中的所有主要设备()

A、sel_ect * where 主要设备

B、sel_ect * from sb where 主要设备=.t.

C、sel_ect 编号,名称,主要设备 from sb where 主要设备

D、sel_ect sb. 编号,sb.名称,sb.主要设备 from sb where 主要设备

E、sel_ect * from sb where 主要设备

F、sel_ect * from sb having 主要设备


正确答案:BCDE

第9题:

Surely it doesn't matter where charities get their money from: what __________ is what they do with it.

A、calculates

B、counts

C、figures

D、reckons


参考答案:B

第10题:

查询有选课记录,但没有考试成绩的学生的学号和课程号,正确的SQL语句是 ______。

A.SELECT 学号,课程号 FROM sc WHERE 成绩=""

B.SELECT 学号,课程号 FROM sc WHERE 成绩=NULL

C.SELECT 学号,课程号 FROM sc WHERE 成绩 IS NULL

D.SELEC T学号,课程号 FROM sc WHERE 成绩


正确答案:C
解析:在SC表中成绩字段为数值型数据且初始为空值,本题要求查询出有选课记录,但没有考试成绩的学生的学号和课程号,只要成绩记录为空就说明没有考试成绩,即查询成绩字段为空值。查询空值时要使用IS NULL,而=NULL是无效的,因为空值不是一个确定的值,所以不能使用“=”这样的运算符进行比较,所以选项C的语法是正确的。

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