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【单选题】
携带式的用电设备的接地芯线,应采用多股软铜线,其截面不应小于( )平方毫米。A.
1
B.
2.5
C.
1.5
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】( )模块传送的数据流叫做逻辑输出数据流。
【单选题】- Can I pay the bill by check? -- Sorry, sir. But it is the management rules of our hotel that payment ______ be made in cash.
A.
can
B.
shall
C.
will
D.
may
【单选题】急性呼吸性碱中毒的血气参数变化是
A.
PaCO 2 降低,BB增高
B.
PaCO 2 降低,AB=SB
C.
PaCO 2 降低,BE负值减少
D.
PaCO 2 降低,AB
E.
PaCO 2 降低,AB>SB
【单选题】— Could I have the small table by the window? — Sorry, sir. It ______ in advance.
A.
booked
B.
will be booked
C.
had booked
D.
has been booked
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