申请进口的可用作原料的废物已被列入《禁止进口类可用作原料的废物目录》。()
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If you have any comment about these clauses, do not hesitate ().
A. in
B. on
C. with
D. /
培训计划一经制定就必须无条件完成。()
A. 正确
B. 错误
As issuers of commercial paper, business firms are______.
A. increasing their assets
B. raising temporary cash in the money market
C. acting as saver-lenders
D. all of the above
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