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【单选题】
Suppose roll the dice repeated continuously three times, let Ai be the event that ith occurrence of one point that the dice shows (i = 1,2,3) , A 1 ∪A 2 ∪A 3 denotes ( ).A.
“T he dice just shows one point once ”
B.
“ T he dice just shows one point at least once ”
C.
“T he dice just shows one point at most once ”
D.
“T he dice just shows one point three times ”
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【单选题】听力原文： Robert Spring, a 19th century forger, was so good at his profession that he was able to make his living for 15 years by selling false signatures of famous Americans. Spring was born in England i...
A.
There was a greater demand there than in America.
B.
There was less chance of being detected there.
C.
Britain was Spring's birthplace.
D.
The price were higher in England and Canada.
【简答题】阅读理解。 Robert Spring, a 19th century forger (伪造者), was so good at his profession that he was able to make his living for 15 years by selling false signatures of Americans. Spring was born in England in...
【简答题】你认为什么叫做播音员?
【简答题】阅读理解。 Robert Spring, a 19th century forger (伪造者), was so good at his profession that he was able to make his living for 15 years by selling false signatures of Americans. Spring was born in England in...
【简答题】语法填空。请仔细阅读下面的短文，短文中有10个空格。请按照句子结构的语法性和上下文连贯的 要求，在空格处填入一个适当的词或使用括号中的词语的正确形式填空。 Where will you choose to live, in the city 1_____ the countryside? People have different ideas 2_____ the question. Some o...
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