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问题 单项选择题

UCS图标表示UCS坐标的方向和当前UCS原点的位置，也表示相对于UCS（）的当前视图方向。

A.ZX平面

B.YZ平面

C.XY平面

D.VIEW平面

答案

参考答案：C

单项选择题

（）是影响国际分工形成与发展的决定性因素。

A.社会生产力

B.经济全球化

C.科学技术水平

D.综合国力
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单项选择题

Once a man and his wife worked for an old man. There was a big box in the old man’s living room. The old man pointed to the box and said, "There’s only one thing you (1) do. Don’t open the box. " (2) saying this, he left his home.The woman said to her husband," There must be (3) expensive in the box. Let’s open it, shall we" Her husband said (4) to her. But the woman didn’t give up her (5) . One day, she decided to find out (6) was in it. Her husband didn’t stop her. She opened the box and looked inside. To her surprise, she found nothing in the box. She tried hard to close it, but she (7) That evening the old man came home and found the box was (8) . He was very (9) and asked the woman and her husband to leave his home."But there was nothing in the box," the woman said. "We haven’t taken anything at all. "The old man (10) them, "The box is not important, but I cannot believe you. That’s important!

 

第（3）空应选择（）

A．nothing

B．everything

C．something

D．anything
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