【单选题】听力原文:M: Shall I call a taxi? W: But the grand hotel is only two blocks away. M: Well, you're right. How will the speakers probably go to the hotel?
【简答题】I shall answer your question after class .
【单选题】I shall answer your question after class. 请指出“shall answer”在句中的成分。
【单选题】原料粒度为5-10 mm, 成品粒度小于100um,属于( )