计算机感染病毒后会产生各种现象，以下不属于病毒现象的是( )。
A. 文件占用的空间变大
B. 发生异常蜂鸣声
C. 屏幕显示异常图形
D. 机内的电扇不转
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The whole nation was in the great impact of the earthquake and the ______ confusion.
A. consequent
B. related
C. consumptive
D. conspicuous
下列过程（）是可逆过程。
A. 气体对真空的自由膨胀过程
B. 气体迅速膨胀的过程
C. 非常缓慢的亦即平衡的压缩过程
D. 单摆的摆动过程
Student: Would it be convenient to see you today, Dr. Jones Dr. Jones: Yes. I have the office hours the whole day. Student: I've been having trouble with my research project. Dr. Jones: ______ We'll talk about it.
A. Is anyone helping you out
B. I'm afraid I will be very busy.
C. It doesn't sound good.
D. You can come anytime.
It can be inferred from the passage that______.
A. people in the future will live far from the dumpsite
B. the garbage will become less and less
C. the recycling program is the only solution to waste disposal
D. strict regulation of waste disposal will be needed
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