AmongthefourseasoffthecoastofChina,EastChinaSeaisthesecond.()A.deepB.deeperC.deepestD.thedeepest
Among the four seas off the coast of China,East China Sea is the second______.( )
A. deep
B. deeper
C. deepest
D. the deepest
-How about a game chess?-____"How about a game ch 2020-05-14 …
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已知集合A={1234},函数fx的定义域,值域都是A,且对于任意i∈A,f(i)≠i.(求答疑) 2020-06-08 …
已知全集I=N,集合A={x|x=2n,n∈N},B={x|x=4n,n∈N},则()A.I=A∪ 2020-07-30 …
设i是虚数单位,复数i3+2i1+i=()A.1B.-1C.iD.-设i是虚数单位,复数i3+2i 2020-08-02 …
若如图是计算2+3+4+5+6的值的程序,则在①、②处填写的语句可以是()A.①i>1;②i=i-1 2020-10-30 …
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若a=i+i2+i3+i4+…+in,则a可能为()A.0B.i,-1+iC.i,-1+i,-1D. 2020-11-01 …
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在图4所示的四个电路中,电源电压都相同且不变,电阻R的阻值均相等.闭合电键S,四个电路中电流表的示数 2020-11-01 …