问题
单项选择题
涂层为纯锌时用（）表示。
A.GI
B.GI
C.Z
D.ZF
答案
参考答案：C
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涂层为纯锌时用（）表示。
A.GI
B.GI
C.Z
D.ZF
参考答案：C
| 阅读短文，在方框中的六个选项中选择五个还原到短文中。 | |
| |
| It was so cold yesterday evening outside 1______, like many parents waiting for their sons or daughters, with a coat under the arm 2______. We loving parents noticed the changes of the weather to come up with the idea -3______. Did they think it was a duty of the parents or were they grateful for what we did? All the lights in the teaching building were brightly on, and at 8:30 pm, the students in their school sports suits came out of the gate in twos or threes, 4______. It was not only a competition among the students, but also among the parents-it seems to me that the parents love their only child as if they loved their pet, and that they would feel happy or unhappy if the pet, 5______ won a prize or fell behind. The results of their study for the students are just like the competition for the pets. Oh, poor boys and girls! Poor Dad and Mom! |