屋面排水按排水方式可分为哪两类？

Have you prepared for the sports meeting which _____ soon?

A．has taken place

B．will be taken place

C．is to take place

D．is to be taken place

严重的腺垂体功能减退症易发生低血糖，主要是因为缺乏 （）

A.PRL及TSH

B.PRL及LH

C.GH及ACTH

D.GH及TSH

E.PRL及ACTH

《城市房地产管理法》规定，房地产交易不包括（）。

A.房屋租赁

B.房地产抵押

C.房地产转让

D.房地产买卖

1. 去年你弟弟去哪儿度假了? 他们去了纽约.

    —_____ _____ your brother go on vacation last year?

    —They _____ to New York City.

2. 昨天上午你看望你的叔.

    —_____ you _____ your uncle yesterday morning?

    —_____, I _____.

3. He went to the mountains yesterday. (对划线部问)

    _____ _____  he _____ yesterday?

4. She studied for exams at home last weekend. (对划线部分提问)

    _____ _____ she _____ for exams last weekend?

沉淀池长40m，宽8m，有效水深4m，沉淀区长32m，沉淀池的水平流速为4mm/s，则颗粒的沉降速率为（）

A.0.4mm/s

B.0.5mm/s

C.0.8mm/s

D.1mm/s