在自杀的社会学因素中叙述正确的是A.自杀率随着年龄的增加而降低  B.独身、离婚、丧

三. 句型转换 ( 10分)

1. There are different ways of doing this.

There are ________________ ways of doing this.

2. He is more than my teacher; he is my friend.

He is ____________ _____________ my teacher; he is my friend.

3.They named their baby Tom, which is also the name of the baby’s grandfather.

The baby was _____________ ___________ his grandfather.

4. A large park has been built in our city; we are able to amuse ourselves after work.

The large park built in our city ____________ us __________ a place to enjoy ourselves.

5. I’ll do all I can to finish the work on time.

I’ll do ___________ __________ ____________ to finish the work on time.

___ _ your school like? 

A．How is

B．How does

C．What does

D．What is

流量表示单位时间内通过某一横截面的流体体积，用字母Q表示。流量监测是抗洪防汛中的一项重要工作。

（1）如图甲所示，水流在粗细均匀的水平管道内向右匀速流动，设水流速度为v，管内通道的横截面积为S．取一段管道AB，水从B端流到A端所用时间为t，则AB间水柱的长度l=              ，体积V=          （要求用S、、t表示）．根据流量的定义Q=V／t可得Q=vS，表示流量等于流速与横截面积的乘积．

（2）打开水龙头，自来水通过导管流过如图乙所示的玻璃管．待水流稳定后，比较图中1、2两处的流速，                （选填“1”或“2”）处的流速较大；比较C、D玻璃管中的水面高度，           （选填“C”或“D”）管中的水面较高。

（3）打开水龙头后，只要水流不散开，就可以观察到水柱越来越细，如图丙所示．产生这种现象的原因是：水往下流时，重力势能转化为                  能，运动速度变             ，而流量不变，根据Q=vS可知，水柱的横截面积减小，因此水柱越来越细．

单位自建建筑物后销售，其自建行为视同提供应税劳务;因此分别按建筑业、销售不动产缴纳两道营业税。

此时诊断为

A．乳腺蜂窝织炎

B．乳腺脓肿形成

C．慢性乳腺炎

D．炎性乳腺癌

E．湿疹样乳腺癌