Which of the following is true? (本题3.0分) A、 If things are very very small, they are germs. B、 If things can’t be seen, they must be germs. C、 Germs are only in dirty water. D、 Germs are everywhere around us.
参考答案:
When I hurriedly got to the airport; the lady at t
When I hurriedly got to the airport; the lady at the window told me that there w