Which of the following statements most acc

As   小题1: she nor her husband smoked, Mrs. Trench was surprised to see cigarette ash on her doorstep as she entered the house. When she opened the living-room door, she was astonished to see a strange man fast   小题2: in an armchair! Taking care not to disturb him, Mrs. Trench left the house immediately. She called a taxi and went straight to the police station. When she got there, she lost no time to explain   小题3:  had happened and added that the man   小题4:  have got into the house   小题5:  an open window. Mrs. Trench returned home   小题6:  a police car together with two policemen. But it was too late: the man had disappeared. 小题7:  (hurry) upstairs, she went to her dressing-table. She smiled   小题8: relief when she saw that the only thing the man had taken was an imitation diamond necklace   小题9:  was almost   小题10: .

根据对话内容填空，补全对话。

The Smiths are going to Haikou for a holiday. Now Mr. Smith is booking rooms by telephone.

Woman - W            Mr. Smith - S

W:  Hello. The Seaside Hotel. 1. ______

S:  Yes, please. I'd like to book two rooms for the coming weekend.

W:  Next weekend, 2. ______

S:  Oh! Just two nights.

W:  OK. Two nights. From Friday or Saturday?

S:  Friday.

W:  Friday, July 1st. And do you need single rooms or double rooms?

S:  3. ______

W:  Right. Two double rooms for Friday and Saturday, July 1st and 2nd.

S:  4. ______

W:  Well, it's 400 yuan per night, with breakfast.

S:  I see. Can I book the rooms now, please?

W:  Certainly. 5. ______

S:  Rick Smith.

某离子晶体的结构（局部如图所示）中，X位于立方体的顶点，Y位于立方体的中心。请回答:

(1)该晶体的化学式为

A.X₄Y            B.X₂Y             C.XY₂                       D.XY

(2)晶体中，每个X的周围与它最接近且距离相等的X的数目为

A.4个            B.6个              C.8个                D.12个

1983年邓 * * 提出，教育要面向 ①现代化；②人类；③世界；④未来   （     ）

A．①②③

B．①②④

C．①③④

D．①②③④

由于（）是随着国内外价格差额的变动而变动，所以它是一种滑动关税。