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搜题
【多选题】
According to the speaker, which of the following sentences are Not correct about the new coronavirus?A.
Getting the coronavirus is a death sentence.
B.
The coronavirus is the most dangerous virus in the world.
C.
the coronavirus came from bat soup
D.
if you receive a package from China, you will get sick.
E.
closing the borders will not definately stop the spread of the coronavirus.
F.
the new coronavirus is not the same as SARS.
G.
The coronavirus was deliberately released or created.
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举一反三
【单选题】径向滑动轴承的相对间隙Ψ,通常是跟据 来选择的。
A.
轴承载荷F和轴颈直径d
B.
润滑油的粘度和轴的转速n
C.
轴承载荷F和润滑油的粘度
D.
轴承载荷F和轴颈的圆周速度v
【单选题】当 a=1 ,b=3,c=5,d=4 时,执行下面一段程序后,x的值为( ) If a < b Then If c < d Then x=1 Else x=2 End If If c < d Then x=3 Else x=4 End If End If
A.
1
B.
2
C.
3
D.
4
【简答题】1-毕达哥拉斯学派把“____”作为他们的哲学基础和理论出发点。