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【简答题】
将物体置于三投影面体系中,利用正投影法将物体分别向三个投影面投射,即得物体的三视图,为__、俯视图和左视图。
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反馈参考答案：
举一反三
【判断题】Volunteering means working without pay. It doesn't involve public speaking.
A.
正确
B.
错误
【单选题】The Great Charter was essentially a(n)
A.
culture movement.
B.
colonial document.
C.
feudal document.
D.
independence declaration.
【简答题】Which of the following is true about volunteering?A. Volunteering doesn’t help in finding a job. B. Volunteering has been proven that your odds are better in finding a job. C. Volunteering is not a go...
【单选题】听力原文：W: Thanks for volunteering to drive me to the airport , but I'm taking the tube that goes there from the campus. M: It's no trouble. Besides, I'd like to see you off. Q: What does the man mean? (...
A.
He wants to say good-bye at the airport.
B.
He would like her to take a day off.
C.
He likes to watch the planes take off.
D.
He thinks she should take the tube to the airport.
【单选题】Volunteering means working without pay. It doesn’t involve public speaking.
A.
right
B.
wrong
【单选题】“Volunteering isn’t completely altruistic.” This sentence means that ( )
A.
volunteers can establish relationship with many nonprofits and make money
B.
volunteering is good not only for others, but also for volunteers.
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