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【单选题】
下列关于子对象的描述中,( )是错误的。A.
子对象是类的一种数据成员，它是另一个类的对象
B.
子对象可以是自身类的对象
C.
对子对象的初始化要包含在该类的构造函数中
D.
一个类中能含有多个子对象作为其成员
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【简答题】窒息性气体(asphyxiating gases)
【单选题】Gases cannot be quickly compressed without generating heat.
A.
气体迅速压缩就一定会产生热量。
B.
气体迅速压缩时一定不会产生热量。
C.
气体不能迅速压缩, 否则一定会产生热量。
D.
气体既不能迅速压缩, 也不会产生热量。
【简答题】A．Gases have been heated to a temperature of multimillion-degree. B．Gases have been drawn to the black hole at a very high speed. C．Gases have been tearing apart by the black hole. D．Gases have been s...
【简答题】Inert gases can also be called ______. A) Noble gases B) Active C) Group 5 elements D) Stable
【简答题】Among the elements of noble gases Helium is the
【简答题】B.Listen to Chapter 4 of Jane Eyre and answer the following questions. Who was Helen Burns? Who was Miss Scatcherd? Did Miss Scatcherd like Helen Burns?Hoe did Scatcherd treat Helen Burns? What did He...
【单选题】Listen to the dialogue about greenhouse gases. Q: What is the problem with too many greenhouse gases?
A.
It would be too cold to survive
B.
It would be too hot to survive
C.
We would be too wet from the gases
D.
We would be too hungry from the gases
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