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举一反三
【单选题】下列关于运算符重载的描述中，错误的是( )。
A.
可以通过运算符重载在C++中创建新的运算符
B.
赋值运算符只能重载为成员函数
C.
运算符函数重载为类的成员函数时，第一操作就是该类对象
D.
重载类型转换运算符时不需要声明返回类型
【单选题】Nutritionist's Advice Eating correctly in your 20s and 30s can be a matter of visual aesthetics, rather than a tiresome exercise in milligram counting．Eat by the colors．If you put a rainbow on your pl...
A.
when one is in one's teens, one should eat things one does not like.
B.
one should be more aesthetically conscious while eating things.
C.
nutrients may be gained from one's riotously colorful plate of food.
D.
one does not have to care too much about what to eat when young.
【单选题】Our journey was slow because the train stopped ______ at different villages.
A.
unceasingly
B.
gradually
C.
continuously
D.
continually
【单选题】已知类A有公用数据成员a，并重载了“＝”运算符，且有A obj2;const A*ptr new A；则下列语句错误的是( )。
A.
ptr-＞a=100；
B.
ptr=&obj2;
C.
ptr++；
D.
obj2=*ptr；
【单选题】局域网技术包括以太网、快速以太网等,其中快速以太网(FastEthernet)的数据传输速率为
A.
10Mb/s
B.
100Mb/s
C.
500Mb/s
D.
1000Mb/s
【单选题】When asking 'do I need my umbrella today?', the author found that Siri______.
A.
responded quickly
B.
ceased working suddenly
C.
provided irrelevant information
D.
misunderstood the question