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【多选题】
公路运输的优点有( )A.
适应性强
B.
直达性能好
C.
载重量小
D.
机动灵活
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反馈参考答案：
举一反三
【简答题】The couple set ________ some money every month for their future use even though their income can only make ends meet.
【单选题】The couple _____ some money every month for their future use even though their income can only make ends meet. [ ]
A.
put off
B.
put up
C.
set down
D.
set aside
【单选题】Some companies have succeeded at an international level even though they have
A.
produced inferior goods.
B.
failed to adapt products for local markets.
C.
ignored the standards set by their competitors.
D.
reduced the standard of the service they offer.
【简答题】In some countries people favor (stay) ______ together even though there is much more space.
【单选题】下列有关氮芥类抗肿瘤药物的叙述不正确的是
A.
环磷酰胺是第一个上市的氮芥类抗肿瘤药物
B.
分子结构中有烷基化部分和载体部分
C.
双β-氯乙氨基是抗肿瘤活性的功能基，属于烷基化部分
D.
改变载体部分，可以提高药物的选择性，降低毒性
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