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【单选题】
越野车的前桥属于A.
转向桥
B.
转向驱动桥
C.
驱动桥
D.
支持桥
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举一反三
【单选题】According to the passage, a man wants a wife because ______.
A.
he needs someone to help with his studies
B.
he feels lonely without her
C.
he cannot have clean clothes to wear without a wife
D.
material comforts can not be attained without a wife
【单选题】I couldn’t______cry while I was watching the movie “Titanic”.
A.
help to
B.
help
C.
help but to
D.
help but
【单选题】The magician picked several people______from the spectators and asked them to help him with the performance.
A.
by chance
B.
at random
C.
on occasion
D.
on average
【简答题】I help _____ with the secretarial work... 我帮着做些秘书工作。
【单选题】What will the woman do about her senior project?
A.
Add more focuses to her project.
B.
Put off her project.
C.
Narrow down the topic.
D.
Change the subject.
【单选题】聚合物胶束与普通表面活性剂胶束相比,其最突出的优势是()
A.
粒径更小
B.
CMC浓度更低
C.
载药量更高
D.
药物缓释时间更长
E.
制备工艺更简单，生产成本更低
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