4、在solview命令中输入UCS（U）、正交(O)、截面(S)等选项可以在布局空间中创建正交的主视图、俯视图等。
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5、三维实体需要用soldraw命令生成二维工程图样。
A. 对
B. 错
Listen to a long conversation and choose the best answer to each question you hear.[音频][音频]
A. He has only written three stories and that is not enough.
B. He has no idea about his new writing assignment.
C. Writing three stories in two months is too much for him.
D. The two-month creative writing class is boring.
[音频]
A. She has long talks with someone on the beach.
B. She will first think about characters and the plot.
C. She draws inspiration by taking long walks in nature.
D. She usually goes to the train station to find inspiration.
[音频]
Approving.
B. Doubtful.
C. Indifferent.
Disapproving.
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