工作E有三项紧前工作A、 B、C，其持续时间分别为：A＝3、B＝7、

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问题单项选择题

工作E有三项紧前工作A、B、C，其持续时间分别为：A＝3、B＝7、C＝5，其最早开始时间分别为：A＝4、B＝5、C＝6，则工作C的自由时差为（）

A.1

B.0

C.6

D.2

答案

参考答案：A

听力题

单词拼写（共10题，每小题0.5分，共5分）

1. If the interviewer asked about your family or school, speak with loyalty and __________.（喜爱）

2. Don’t you think it __________（荒唐的）to go out for a picnic in such bad weather?

3. When the old man let out his real __________ （身份）as the president of the multinational company, the woman

was shocked.

4. It's a little__________ (别扭的尴尬的), because he's my friend but I'm still his boss.

5. This __________ （环境的） effect of this new factory could be disastrous.

6. Children and a__________ should be paid more attention to.

7. It is a h__________ thing to see one person make another suffer.

8. He is not a friend of mine，only an a__________.

9. The quality of raw m__________ is essential to the quality of product.

10.His old car c__________ much gasoline, so he decided to buy a new one.

填空题

随着生活水平的提高，一些高科技成果已逐步走入人们的生活。如图是一种太阳能路灯，你能从它的相关说明中获得哪些信息？（写出两条即可）

①_______________________________________________ ；

②______________________________________________ ；

③ 该灯工作的实质，是将太阳能最终转化为_______________________________________。