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【判断题】
决策树中决策点和机会点上的期望值都是通过结果值与其对应概率计算所得的。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】在CRH380A动车组二级修程中,给排水装置检查及清洁作业的检修周期是( )
【单选题】5-16．确定单根 V 带许用功率 P0 的前提条件是 。
A.
保证带 不 打滑
B.
保证带 不 打滑，不弹性滑动
C.
保证带 不 打滑，不疲劳破坏
D.
保证带 不 疲劳破坏
【单选题】听力原文：M: What did you think about the video we were supposed to watch for Professor Stephen' s class? W: I didn't see it. Was it good? M: Really it was. It was about stress, the effects of stress on th...
A.
It is required by Professor Stephen.
B.
It is very interesting.
C.
He wants to know about heart attacks.
D.
He took part in the discussion.
【单选题】患者，男，61岁，突然意识不清1小时。头颅CT显示右侧大脑半球3cm×3cm×6cm高密度影，最可能是下列哪项诊断？( )
A.
晕厥
B.
脑出血
C.
脑栓塞
D.
脑血栓形成
E.
高血压
【单选题】What is wrong with the video recorder?
A.
It was slightly damaged.
B.
It destroys video tapes.
C.
Its compartment is broken.
D.
It produces unclear visions.
【单选题】According to the video,what will the manager do at 10 a.m.?
A.
have lunch with Mrs. Foster
B.
have a meeting about the overseas market
C.
attend a press conference
D.
fly to Paris
【单选题】What else can we learn from the video?
A.
What else can we learn from the video?
B.
The show will start at 8 pm.
C.
Jack is bound to be late for the show.
D.
Jack promises to come to the Hall before eight.
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