皮皮学，免费搜题
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搜题
【单选题】
列车应设有列车乘务组。动车组列车应有动车组司机,其他列车应有( )。A.
车务人员
B.
车辆乘务人员
C.
机车乘务人员
D.
客运乘务组
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下面关于组合逻辑控制器正确的描述是:___。
A.
组合逻辑控制器是由软件实现的，所以比较灵活
B.
组合逻辑控制器是由硬件实现的，因此速度很快
C.
组合逻辑控制器是由软件实现的，所以容易修改
D.
组合逻辑控制器是一系列微指令实现的，因此体积很小
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【单选题】The gifts he brought from Britain()last week.
A.
sent out(送出)
B.
were sent out
C.
have sent out
【判断题】Gifts sent between close friends are usually practical or something needed.
A.
正确
B.
错误
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【简答题】Bill ,Frank and Dave were brothers. Every year, they sent their mother expensive gifts on her birthday .They liked to show her how rich and successful they were. The eldest brother ,Bill, had a lot of...
相关题目：
【单选题】The gifts he brought from Britain()last week.
A.
sent out(送出)
B.
were sent out
C.
have sent out