皮皮学,免费搜题
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【单选题】
When college students ________ future employment, they often think of income and status. [     ]
A.
apply
B.
assume
C.
demand
D.
wish
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举一反三
【单选题】Cars, buses and bikes ______ stop when the traffic light is red. [     ]
A.
must
B.
can
C.
may
D.
need
【单选题】You ________ stop when the traffic light turns red. [     ]
A.
can
B.
had better
C.
need
D.
must
【单选题】Be careful . You _______ cross the road when the traffic light is red . The traffic is heavy at this time of day .
A.
must
B.
mustn’t
C.
can
D.
needn’t
【单选题】All the cars _____ stop when the traffic light is red. [     ]
A.
can
B.
need
C.
may
D.
should
【单选题】光的相干原理条件不包括()。
A.
两光波频率相同
B.
两光波波长相同
C.
两光波在相遇点的振动方向相同
D.
两光波在相遇点具有恒定的位相差
【单选题】You _________ drive on when the traffic light is red.
A.
can’t
B.
needn’t
C.
mustn’t
D.
may not
【单选题】You ________ drive forward when the traffic light is red. [     ]
A.
shouldn't
B.
can't
C.
mustn't
D.
may not
【多选题】螺纹车刀车削螺纹时,假如螺纹刀安装时( ),会造成牙形角误差。
A.
刀尖低于中心
B.
刀尖高于中心
C.
刀尖正对于中心
D.
刀具安装倾斜
E.
前面垂直于螺旋线
【简答题】With the help of 4G networks, traffic light cycle period can be adjusted according to ______.
【判断题】物质世界由非生物、生物两部分组成。
A.
正确
B.
错误
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