建筑给水引入管在地下爱埋设时，管顶覆土厚度应不小于（）。A.0.6米 B.0.7米

阅读理解。

     Jane always goes to school early. She likes to talk to her friends before class. After school she does not

go home early. She is always late. Jane stops to see the animals in the pet shop. She likes to see the dogs.

One of them is a little dog. She watches the little white dog play in the window of the shop. She watches for

a long time, so she comes home late.

     One day her father and mother ask why she is late, and she tells them about the little dog in the pet shop.

     Jane is not late the next day. She stops to look in the window of the shop. But she doesn't see the little

white dog, and she is very sad. She is also very happy, today is her birthday.

     Mother shows her a big birthday cake and Father gives her a birthday surprise. He gives the little white

dog from the shop. Jane is very happy. The next day Jane does not come home late. She runs home to play

with the white dog.

1. Before class begins, Jane usually ________.

A. plays with her friends

B. talks to her friends

C. looks at the dogs in the window

D. have a break

2. After school Jane ________.

A. comes home early

B. does not go home late

C. plays with the dogs

D. always goes home late

3. Jane likes ________ best.

A. the pet shop

B. the little white dog

C. little animals

D. the window of the shop

4. Who bought (买) the little white dog?

A. Jane.

B. Jane's friends.

C. Jane' s father.

D. Nobody.

5. The birthday surprise is ________.

A. a big cake

B. some presents

C. some flowers

D. the little white dog

宫颈活组织检查方法分为________、________、________。

黄先生采用住房抵押贷款方式购买了一套总价30万元的房子，贷款20万元，贷款期20年，抵押贷款月还款系数为0.006924。黄先生住了两年后，想将房子租出，于是委托A中介公司的经纪人小张代为招租，在未租出前房屋仍由黄先生管理。

小张有义务告知黄先生不得将房屋出租给( )人员。

A．无民事行为能力的

B．无合法有效身份证明的

C．无所在城市户口的

D．有犯罪记录的

北京时间2008年9月28日17时37分许，在太空遨游两天多的“神舟”七号飞船返回舱成功着陆。由于返回舱附带着一个大型的降落伞，所以在着陆的过程可简单视为先加速，再减速，后匀速的过程，则在此过程中以下说法正确的是（    ）

A．返回舱着陆的过程中，动能和重力势能总和保持不变

B．返回舱速度最大时，重力势能最小

C．返回舱速度最大时，机械能最小

D．返回舱落到地面时，机械能最小

新修订的《北京市安全生产条例》于（）起实施

A.2010-9-1

B.2011-9-1

C.2013-9-1