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问题 单项选择题

资源中心是用来访问和维护资源中心库的工具。用资源中心进行哪种操作不正确？（）

A.查找资源中心库中的零件

B.在部件中插入资源中心库零件

C.不能发布资源中心库中的零件、IParts或特征

D.编辑放置在部件中的资源中心库零件

答案

参考答案：C

补全对话，情景问答
从方框中选出最佳答案完成对话，有两项是多余的。

A: What did you do during this summer vacation, Brett?
B: My wife and I went to California to visit some families.
A: Oh,    1   ?
B: It was great! You know    2    there in the season.
    The sky was blue and the air was fresh.
A: What was the coolest part?
B: We went out to Ocean Beach and    3    there.
    The weather was good and the waves were high
    so    4    to watch them in the water.
A: Were you in Southern California or Northern California?
B: We were in Northern California, in Silicon Valley area.
    And, that's    5   .
A: You were so lucky!

A. it was a lot of fun
B. how nice you were
C. how was that
D. where we used to live
E. watched the surfers
F. I don' t know how to tell you
G. the weather was quite fine

1.______ 2.______ 3.______ 4.______ 5.______
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判断题

单位时间内通过固体壁面的热量与壁的两表面温度差和壁面面积成正比，与壁厚度成反比。
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