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【简答题】
在化工工艺流程图中,辅助物料管用()线画出。
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皮皮学刷刷变学霸
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【单选题】听力原文：W: Are you going to graduate next year? M: I don't think so. I don't have enough credits in my major yet and I still have some basic courses to take. Q: What does the man mean? (17)
A.
He wants to stay in school longer after graduation.
B.
He needs more credits before graduation.
C.
He is going to drop out of school.
D.
He has taken all his classes in his major.