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【单选题】
当发现有人触电而不能自行摆脱时,不可采用的急救措施是___A.
就近拉断触电的电源开
B.
用手或身体其他部位直接救助触电者
C.
用绝缘的物品与触电者隔离进行救助
D.
拿掉熔断器切断触电电源
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反馈参考答案：
举一反三
【单选题】Edge and screw dislocations differ in what way?
A.
1 magnitude of their Burgers vectors
B.
line direction is straight (edge) or curved (screw)
C.
angle between Burgers vector and line direction
D.
None of above
【简答题】One interesting thing of watching reporters cover the debate of minimum wage is thatthey often try to be judges of these debates. 查看材料
【简答题】（ ）cover shipment from or to ports involving transport by two or more shipping or railways companies．
【单选题】As I will be away for at least a year, I’d appreciate _____ from you now and then so that I can know how everyone is getting along.
A.
having heard
B.
to hear
C.
hearing
D.
being heard
【单选题】A technician is trying to retrieve a screw that fell inside a case and is just out of reach. Which of the following is the BEST procedure to retrieve the screw?（）
A.
Turn the case upside down, shake gently and let the screw fall out.
B.
Use a shop vacuum to retrieve the screw.
C.
Use the hardware abstraction layer (HAL).
D.
Use an extension magnet.
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