短周期元素组成的物质Q，发生如下反应：QR+T+H₂O，下列说法正确的是（　　）

记承天寺夜游

苏轼

       元丰六年十月十日夜，解衣欲睡，月色入户，欣然起行。念无与为乐者，遂至承天寺寻张怀民。怀民亦未寝，相与步于中庭。庭下如积水空明，水中藻荇交横，盖竹柏影也。何夜无月？何处无竹柏？但少闲人如吾两人者耳。

阅读下面对话，从方框内七个选项中选择五个恰当的句子完成此对话。

A: Hello, this is Lucy speaking. Is that Li Wei?

B: Hi, Lucy! ____ We are expecting your coming.

A: Thank you!My plane leaves Beijing this afternoon.  

B: ____

A: It's CA1409.

B: OK, CA1409. ____

A: At 3:30 in the afternoon.

B: Leaves at 3:30, and arrives...

A: It arrives at 6:10, and I'll have to wait some time for my luggage(行李).

B: All right. ____

A: Thanks a lot. ____

B: I've ordered a room for you in the center of the city near my home.

A: Wonderful! See you then!

B: See you!

A. When does it take off?

B. How about my hotel?

C. When does it arrive?

D. What's your flight number?

E. This is Li Wei speaking.

F. Who will meet you?

G. I'll wait for you at the gate at 6:30.