发包人在施工中若要对工程设计进行变更，应提前（）天书面通知施

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问题单项选择题

发包人在施工中若要对工程设计进行变更，应提前（）天书面通知施工承包人。

A．6

B．10

C．14

D．30

答案

参考答案：C

解析：

发包人在施工中要对工程设计进行变更，应提前14天书面通知施工承包人。

句型转换

将下列表示单数的句子改成复数的句子。

1. This is a box.

_____________________________________________________

2. Do you have a new radio?

_____________________________________________________

3. There is one peach in my hand.

_____________________________________________________

4. She has a camera and an umbrella.

_____________________________________________________

5. He is a driver.

_____________________________________________________

6. That is her watch.

_____________________________________________________

7. He is a policeman.

_____________________________________________________

8. He has a good friend.

_____________________________________________________

9. What is that?

_____________________________________________________

10. This is a tomato.

_____________________________________________________

问答题简答题

简述动物实验前的准备工作内容。