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【单选题】
下述几种发球技术中哪一种在目前比赛中运用得最为普遍?A.
勾手大力发球
B.
高吊发球
C.
跳发球
D.
发侧旋球
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反馈参考答案：
举一反三
【单选题】根据货流特点确定货运车辆行驶的最佳线路和运行方式,制定运行作业计划,使货运车辆有序运转属于货运站功能中的
A.
货源组织与管理
B.
货运生产组织管理
C.
运力组织与管理
D.
运行组织与管理
【单选题】When he looked up，he suddenly found himself ______by a group of teenagers，____looked at him anxiously.
A.
to be surrounded；which
B.
surrounded；who
C.
be surrounded；who
D.
having been surrounded；which
【单选题】He_______the book and decided that he wouldn’t buy it.
A.
looked into
B.
looked on
C.
looked after
D.
looked through
【简答题】A．He looked very excited. B．He looked pale and sad. C．He was poorly dressed. D．He said he wanted to buy a beautiful vase.
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