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【简答题】
设X，Y是Banach空间，T：X→Y是线性算子并且对任意x n ∈X，当x n →θ(n→∞)时，对于每一个f∈Y * 有f(Tx n )→0(n→∞)．证明T是连续的．
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举一反三
【单选题】( )3.-What can he do? -They_______ that he follow their advice. A.suggest B.believe C.wish D.hope
A.
suggest
B.
believe
C.
wish
D.
hope
【简答题】When I was a boy, my grandfather told me how a German taxi driver, Franz Bussman, found a brother who was thought to have been killed twenty years before. While on a walking tour with his wife, ...
【单选题】What does the man suggest?
A.
He suggests that they should go out for a walk.
B.
He suggests that they should go to the cinema.
C.
He suggests that they should eat in a restaurant.
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