题目内容
(请给出正确答案)
[单选题]
It was such a(n)() to hear that Marta was found safe and well.
A.concern
B.expectation
C.relief
答案
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A.concern
B.expectation
C.relief
第1题
A.t0,05(n')≥t≥t0,01(n'),0,05≤P>0,01
B.t0,05(n')≤t≤t0,01(n'),0,05≥P>0,01
C.t≥t0,01(n'),P≤0,01
D.t≥t0,01(n'),0,05≤P>0,01
E.t0,05
第7题
设.求θ,如果
a)f(t)=tn(n>-1);b)f(t)=lnt;c)f(t)=et,等于什么?
第10题
设X是Banach空间,,α∈,n∈.证明:
r(αT)=|α|r(T),r(Tn)=[r(T)]n.