一本数学书的价钱约是[ ] A．4角7分 B．4元7角 C．47元_爱下问搜题

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问题选择题

一本数学书的价钱约是[ ]

A．4角7分

B．4元7角

C．47元

答案

答案：B

补全对话，情景问答

补全对话。

A. I hope you have a good time.
B. It's good for swimming.
C. I'd like to visit Hawaii with my parents.
D. How long are you staying there?
E. Yes, I'd like to.
F. Oh, I'm going to the beaches, swimming, relaxing…
G. I've no idea.

M: Where would you like to go on vacation?
W: 1
M: That sounds interesting. What are you doing there?
W: 2
M: But how is the weather going to be there?
W: It's going to be fine. And it's always sunny and hot.
M: 3            Can you swim?
W: No, I can't. But my father is teaching me.
M: That's great! 4
W: May be two weeks.
M: 5
W: Thank you.

选择题

如图甲，圆形线圈P静止在水平桌面上，其正上方悬挂一相同的线圈Q，P和Q共轴，Q中通有变化电流，电流随时间变化的规律如图乙所示，P所受重力为G，桌而对P的支持力为N，则（）

A．t1时刻 N＞G，

B．t2时刻 N＞G，

C．t3时刻 N＜G，

D．t4时刻 N＝G。