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【多选题】
以下关于木工机械安全装置说法正确的是( )。A.
木工机械完善的安全装置包括安全防护装置、安全控制装置和安全报警信号装置等
B.
有轮必有罩、有轴必有套、刨(剪)切有挡
C.
对产生噪声、木粉尘或挥发性有害气体的机械设备，应配置与其机械运转相连接的消声、吸尘或通风装置
D.
针对木材加工作业中的木材反弹危险，应采用安全送料装置或设置分离刀，以及防反弹安全屏护装置
E.
在装设正常启动和停机操纵装置的同时，应专门设置遇事故需紧急停机的安全控制装置
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举一反三
【单选题】—What was onthe table an hour ago? —There ______ some bread on it.
A.
is
B.
are
C.
was
D.
were
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【简答题】We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable. For your safety and convenience To begin the trip, we would like to draw your attention to so...
【简答题】We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable. For your safety and convenience To begin the trip, we would like to draw your attention to so...
【单选题】Advocates of seat belts on school buses―many of them are parents and medical organisations―argue that seat belts are necessary not only to reduce fatality and injury, but also to teach children lesson...
A.
The use of seat belts can stop the death and injury .
B.
Seat belts can help children realize the importance of using them in moving vehicles.
C.
Seat belts can teach children lessons about the importance of keeping away from drivers.
【单选题】--- Mum, what are you doing? ---Your uncle will come; I put a(an) ________ plate on the dinning table.
A.
more
B.
extra
C.
another
D.
few
【简答题】We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable. For your safety and convenience To begin the trip, we would like to draw your attention to so...
【简答题】Task 3 We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable. For your safety and convenience To begin the trip, we would like to draw your attentio...
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