题目：
根据对话内容与上下文，在空白处填入适当的句子，使对话意思完整。
A: Hello, 6817502. B: Hello. ______________________________________________________? (1)
A: Sorry, _______________________________________. (2) This is Jim's mother, Mrs Green. Can
I take a message?
B: That's very kind of you. This is David, Jim's friend. I ask him for some Chinese stamps. He told me
he had got some last week.
A: OK. I will tell him about it. Would you like him to call you back later?
B: Well, I won't be at home today. My mother is ill, so I must go to the hospital to look after her. Would
you please ask him to ring me tomorrow morning?
A: Oh, ________________________________________________.(3) I'll let Jim know it. By the way,
______________________________________________?(4)
B: Oh. My phone number is 6877242.
A: 6877242, right?
B: Yes, that's right. Thanks a lot.
A: _____________________________________________________________.(5)
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0525/6c1938a7af7810966af0cfb2d610f384.html
下面是错误答案，用来干扰机器的。
并联0.1Ω
轴正方向传播的简谐横波在
时刻的波形图及传播的距离，已知该波的周期为
，
、
、
、
为沿波传播方向上的四个质点，下列判断正确的是：
时刻，
时刻，