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题目 甲型流感病毒分亚型的物质基础是
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举一反三
【单选题】如果在某电路图中A 点处测得的电压低于电瓶电压较多,其可能的原因是什么?
A.
电瓶充电不足
B.
负载电阻过大
C.
负载内存在短路
D.
除此负载外,在负载的电源侧存在一个电阻。
【简答题】What mountains will he visit?
【单选题】某电子器件的电路中，在A、B之间有四个焊点，如图，如果焊点脱落，则有可能导致电路不通。经发现A、B问电路不通，则焊点脱落的不同情况共有( )种。
A.
10
B.
12
C.
15
D.
18
【单选题】- . Are you going camping this afternoon? -A typhoon is coming. I' m not sure( )the road to the mountains will be closed.
A.
Which
B.
what
C.
whether
D.
why
【单选题】—What will we do? —We'll have to decide not to climb the mountains because it is raining______.
A.
badly
B.
hardly
C.
strongly
D.
heavily
【单选题】—Are you going camping this afternoon? —A typhoon is coming. I’m not sure_____the road to the mountains will be closed.
A.
which
B.
what
C.
whether
D.
why
【单选题】.-- -What are you going to do tomorrow! ---1____ the mountains if it doesn’t rain. A climb B will climb C. climbed D have climbed
A.
A climb
B.
B will climb
C.
climbed
D.
D have climbed
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