未知题型
A、前角γaB、刃倾角λsC、主偏角kr正确答案:前角γa
The actress red dress was very c_______________ on the ...
问答题The actress red dress was very c_______________ on the stage. (显眼的)
下述哪一项不是Pro/Engineer软件的显著特点()
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下列哪个是正确的ID选择器( )。A..id { } B.p { } C.ID { } D.#a...
单项选择题下列哪个是正确的ID选择器( )。