皮皮学,免费搜题
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搜题
【单选题】
成年女患间歇导尿,每次导尿量较适宜的是?
A.
100ml
B.
300ml
C.
500ml
D.
700ml
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【多选题】NB-IOT 物联网与传统移动蜂窝网有哪些优势?( )
A.
海量连接
B.
深度覆盖
C.
低功耗
D.
低成本
【单选题】下列哪个扩展名表示数字音乐文
A.
avi
B.
mid
C.
png
D.
wmf
【单选题】Your car needs .
A.
to oil
B.
being oiled
C.
an oil
D.
oiling
【单选题】(2) Your car needs .
A.
to oil
B.
being oiled
C.
an oil
D.
oiling
【简答题】At the time when their parents were young, a lot of modern necessary equipment owned by young people now was regarded as ______.
【单选题】设向量 a =(1,0), b = ,则下列结论中正确的是 [     ]
A.
| a |=| b |
B.
a · b =
C.
a - b 与 b 垂直
D.
a ∥ b
【单选题】The time when a lot of people are travelling to or from work and so roads and trains are very busy
A.
Rush hour
B.
toll
【判断题】测量的基本工作是平面控制测量和高程控制测量。( )
A.
正确
B.
错误
【单选题】设a、b、c均为非零向量,则与a不垂直的向量是:()
A.
(a·C.b-(a·B.c
B.
B.b-(a·b/a·a
C.
a×b
D.
D.a+(a××a
【单选题】设向量 a =(1,0), b =( 1 2 , 1 2 ),则(  )
A.
| a |=| b |
B.
a ? b = 2 2
C.
a ∥ b
D.
a - b 与 b 垂直
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