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【单选题】
设 是矩阵 的特征值,且 ,则 只能是( )A.
0
B.
1
C.
正实数
D.
0或1
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【简答题】阅读理解。 How Americans Began to Eat Tomatoes People have strange ideas about food. For example, the tomato is a kind of very delicious vegetable. It is one of useful plants that can be prepared in many w...
【简答题】卵期是( )自产下后到孵化为幼虫或( )所经过的时间。
【单选题】(2015年下半年试题6)计算机系统的工作效率通常( )来度量;计算机系统的可靠性通常用( )来评价。
A.
平均响应时间
B.
平均无故障时间（MTBF）
C.
平均修复时间（MTTR）
D.
数据处理速率
【多选题】Why do experts say twins are more alike than clones would be?
A.
They have at least shared the same environment within the mother.
B.
They have the same genes.
C.
They are usually raised in the same family.
D.
They have the same interests.
【简答题】Why do almost one half of all Americans have to pay experts? [A] Because the list of taxes seems endless. [B] Because they would rather spend their time and energy elsewhere. [C] Because they find the...
【单选题】以下对字符数组initarray进行初始化的语句,不正确的是()。
A.
char initarray [] = 'word\0';
B.
char initarray [] = {'w', 'o', 'r', 'd', '\0'};
C.
char initarray [] = { " word\0 " };
D.
char initarray [] = " word\0 " ;
【简答题】Martin was returning to work in his London office after spending two weeks with his brother over in New York. He was coming back with a heavy heart. It was not just that it was the end of a wonderful ...
【简答题】阅读理解。 How Americans Began to Eat Tomatoes People have strange ideas about food. For example, the tomato is a kind of very delicious vegetable. It is one of useful plants that can be prepared in many w...
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