高层旅馆位于袋形走道两侧或尽端的房间门至最近的外部出口或楼梯间的最大距离为( )m。

题型:单项选择题

问题:

高层旅馆位于袋形走道两侧或尽端的房间门至最近的外部出口或楼梯间的最大距离为( )m。

A.12
B.15
C.18
D.20

考点:注册建筑师建筑设计民用建筑设计防火规范
题型:单项选择题

阅读理解。

Dear Lucy,

    How are you? Thank you for your letter.

    I live in Beijing now because my father and mother work in a school here. I am in

No.1 Middle School. Here we have four classes in the morning and two in the afternoon.

We have Chinese, maths, English, P.E., music and some other subjects. My favorite is

Chinese. I want to know more about China. At school I often teach my classmates English

and they teach me Chinese. We are good friends.

    I'm coming to my home in the U.S.A. on July 10th. I will see you at that time. 

                                                                                                                   Yours,

                                                                                                                   Jenny

根据Jenny的回信内容,完成句子,每空一词。

1. Jenny's ______ teach in Beijing.

2. Jenny has ______ classes in a day.

3. Of all the subjects, Jenny likes _____ best.

4. Jenny is an _____ girl.

5. From the letter we know Jenny's classmates are _____ to her.

题型:单项选择题

在直角坐标系内有两点A(-2,1)、B(2,3),若M为x轴上一点,且MA+MB最小,则M的坐标是_______.

题型:单项选择题

芒硝的提净工艺是()

A.药材溶于规定热溶剂中-过滤-得结晶

B.药材溶于规定热溶剂中-过滤-滤液静置-冷却得结晶

C.药材溶于规定热溶剂中-过滤-滤液浓缩-得结晶

D.药材溶于规定热溶剂中-过滤-滤液加一定辅料-浓缩-得结晶

E.药材加热熔融-过滤-滤液-浓缩-得结晶

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收入类账户的借方登记()。

A.负债增加

B.收入增加

C.收入转销

D.费用减少

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一对齿轮啮合传动时,若(),即为等速传动。

A.i>1

B.i<1

C.i=1

D.i≥1

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