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【单选题】
蛔虫的寄生部位是A.
小肠
B.
胆管
C.
肺部的
D.
血管
E.
大肠
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举一反三
【单选题】下列化合物的极性顺序大致为（）
A.
饱和烃>不饱和烃>羰基化合物>酸、碱
B.
饱和烃>羰基化合物>不饱和烃>酸、碱
C.
酸、碱>饱和烃>不饱和烃>羰基化合物
D.
羰基化合物>饱和烃>不饱和烃>酸、碱
【简答题】A student is learning to speak British English. He wonders: Can I communicate with Americans? Can they understand me? Learners of English often ask: What are the differences between British and Americ...
【单选题】Why is the man happy?
A.
His operation was successful.
B.
He can communicate with her grandkids.
C.
He has retired.
D.
He had a nice vacation.
【单选题】He can communicate with the clients .
A.
fast
B.
effectively
C.
right
D.
confidential
【单选题】The boy is so shy that he can't ________ very well ________ others. [ ]
A.
communicate; to
B.
communicate; with
C.
get along; to
D.
deal; with
【单选题】在表现大风、旋风等自然现象是,可以采用流线的表现法:按照气流的( ),速度和形态,在动画纸上用铅笔画成疏密不等的流线。
A.
A强弱
B.
B方向
C.
C运动方向
D.
D大小
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