As a student, you should do your duty an

题型:选择题

问题:

As a student, you should do your duty and put your heart into study ______.

[      ]

A. at one time

B. at all times

C. at a time

D. at times

考点:介词和介词短语
题型:选择题

Our friendship        our childhood has lasted for years.

A.dates back to

B.dating back

C.dates from

D.dating from

题型:选择题

Read and choose. (读对话,选择正确的词语填空)

Mike: Good 1.________ (morning / afternoon)! Sam.

Sam: Good afternoon ! Mike.

Mike: Look! 2.________ (This / That)is my new friend Sarah.

Sam: Hi! Sarah. 3.________ (My/ I)name is Sam.

Sarah: Hi! Sam. Nice to meet you.

Sam: 4._______. (Nice to meet you,too / Goodbye)

题型:选择题

下列叙述不属于规划的环境影响报告书内容的是( )。

A.实施该规划对环境可能造成影响的分析、预测和评估
B.预防或者减轻不良环境影响的对策和措施
C.规划涉及的建设项目对环境影响的经济损益分析
D.环境影响评价的结论

题型:选择题

在SQL中,ALTER命令有两个选择项: (7) 子命令用于修改字段名, (8) 子命令用于增加新的字段。

题型:选择题

若下列选项中的变量已正确定义并赋值,则符合Java语言语法的是( )。

A. b=a! =76;

B. a=8+b+C=9;

C. i=12.3*%4;

D. a=a+7=c+b;

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