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问题 选择题

We have ______ our sports meeting till next Monday because of the bad weather.

A．put on

B．put off

C．put down

D．put up

答案

答案：B

从句子含义来看B选项最符合题意，put off 延期。

选择题

Choose the right answer. 选择正确答案。

1. The second month of the year is ____.      [ ]

A. January    

B. May    

C. February

2. — When is Spring Festival?

    — ____     [ ]

A. It's in January or February.

B. It’s Monday.    

C. It's good.

3. The fifth day of the week is ____.      [ ]

A. Sunday    

B. Saturday    

C. Thursday

4. — When is National Day?

    —          .      [ ]

A. February    

B. October first    

C. January or February

5. ____ is May first.    [ ]

A. National Day    

B. New Year's Day    

C. International Workers' Day
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单项选择题

真核生物的转录特点是

A．RNA聚合酶都被鹅膏蕈碱抑制
B．需要a因子辨认起点
C．已发现有5种真核生物RNA聚合酶
D．转录产物有聚A(polyA)尾巴，DNA模板上有相应的polyT序列
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