问题
单项选择题
题6图中,电压u为 ( )
A.2V
B.4V
C.6V
D.8V
答案
参考答案:B
题6图中,电压u为 ( )
A.2V
B.4V
C.6V
D.8V
参考答案:B
从方框中选出适当的句子补全对话。 | |
B: __1__ A: Do you have a friend here? B: Yes, I do. A: __2__ B: Oh. She is my friend, Amy. A: __3__ B: She comes from the U. S. A. A: She looks like Judy. B: __4__ A: Are they in the same class ? B: No. They are in the same grade, __5__ |