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【单选题】
The teacher said that the moon around the earth.
A.
went     
B.
goes                 
C.
go.
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【单选题】图示机构自由度W的正确计算结果为( )。【图片】
A.
W=3×6-2×8-1=1
B.
W=3×7-2×10=1
C.
W=3×9-2×12-2=1
D.
W=3×8-2×11-1=1
【判断题】列车必须在区间退行时,随车机械师或指派的胜任人员应站在列车尾部注视运行前方。
A.
正确
B.
错误
【单选题】图示机构自由度W的正确计算结果为( )。【图片】
A.
W=3×6-2×8-1=1
B.
W=3×7-2×10=1
C.
W=3×9-2×12-2=1
D.
W=3×8-2×11-1=1
【判断题】列车必须在区间退行时,随车机械师或指派的胜任人员应站在列车前部注视运行前方。
A.
正确
B.
错误
【判断题】Working remotely is a helpful way for millennials to get a higher degree of workplace flexibility.
A.
正确
B.
错误
【单选题】More and more people are working remotely. Here are some tips to keep in mind to stay focused on your work when working at home: Set and keep regular office hours. __ 1 __ Then try your best to leave ...
A.
It could be a spare bedroom that you've turned into a home office.
B.
Plan your work around your most productive hours.
C.
Do your best to set work hours and stick to them.
D.
Take a lunch break and enjoy a midday meal.
E.
It is more comfortable to stay at home.
F.
Some interruptions can't be avoided.
G.
Avoid online distractions as well.
【单选题】列车必须在区间退行时,( )应站在列车尾部注视运行前方。
A.
乘务员
B.
随车机械师
C.
机械师
D.
司机
【单选题】列车必须在区间退行时,随车机械师应站在()注视运行前方。
A.
车门口处
B.
车辆顶部
C.
驾驶室
D.
列车尾部
【单选题】下列切削 加工效率最高的是 ( )。
A.
仿形法
B.
插齿加工
C.
滚齿加工
D.
铸造
【判断题】电动汽车的优点是零排放、能源利用率高、结构简单、噪音小、保养复杂。
A.
正确
B.
错误
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