某技术员通过学习PID对工艺流程进行优化，使一变频泵的实际扬程下降三分之一，则估计该

下图是某家族黑尿症的系谱图。

①预计Ⅲ₆是患病男孩的概率 ②若Ⅲ₆是患病男孩，则Ⅱ₄和Ⅱ₅又生Ⅲ₇，预计Ⅲ₇是患病男孩的概率

A．①1/3，②1/2

B．①1/6，②1/6

C．①1/6，②1/4

D．①1/4，②1/6

第一节完形填空(共15小题；每小题2分．满分30分)

阅读下面短文，掌握其大意．然后从1—15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。

I can still remember when I met my best friend．She had just moved into the neighborhood and her grandmother brought her down to  1     me．I hid behind my motherland she hid behind her grandmother，  3       to look at each other．Soon we lost the 2       and started playing with each other．

In the 7th grade，I first lost touch with her．She was  4     family problems and I deserted her to be with the because they knew she had  5        people．None of my new friends liked her as much as I did because they knew she had  6      ．However，every summer we could always sit at each other’s house and watch soap operas，and talk about all the boys we liked．

It was last year when I noticed the problem．I guess I was too devoted in high school to  7       she needed someone there for her．Anyway，she made a new best friend and so did I．Then 1 didn’t know why，but she started cutting herself!

She then was diagnosed（诊断）with clinical depression．At first，1 was very 8 ，but we still stayed in  9 ．I wanted to be there for her since her new best friend basically  10  her and people were calling her  11 ．

Yesterday she came to me and said：“I never knew what a best friend was until you were the only person that would stop me cutting．I  12  you so much，and you didn’t even know you were  13  me．”

We both cried．And I guess a kind of  14  from my life so far is never to give up on your friends．Even if they aren’t as cool as others，or people think they are crazy，they need someone there．If you desert them，you will only be  15  yourself.

1．A．follow      B．meet  C．join   D．support

2．A．scared      B．annoyed    C．worried    D．delighted

3．A．temper     B．interest     C．confidence       D．shyness

4．A．taking up  B．getting through C．going through  D．making up

5．A．happier     B．cooler       C．stronger    D．cleverer

6．A．problems  B．shortcomings    C．partners    D．disabilities

7．A．admit       B．accept       C．consider    D．realize

8．A．calm B．considerate       C．upset D．helpful

9．A．place B．touch C．control     D．mood

10．A．confused   B．bothered   C．reminded  D．deserted

11．A．crazy B．stubborn   C．clumsy     D．stupid

12．A．expect      B．influence  C．appreciate D．demand

13．A．urging      B．blaming    C．helping     D．hurting

14．A．honour     B．favour      C．pleasure    D．lesson

15．A．innocent   B．successful C．guilty       D．reliable

滑石的性状特征有

A．不规则块状

B．有蜡样光泽

C．气微，味微涩

D．手摸有滑润感，无吸湿性

在太空中，宇航员观察星星时发现（）。

A.星光闪烁

B.星星十分清晰

C.有时闪烁，有时清晰

D.当太空舱位于地球和太阳之间时，星光闪烁

在某县检察院附近，朱某和朋友齐某、汪某路遇与自己有纠纷的宋某，遂和朋友上前一起围殴宋某，多人围观，现查明，宋某被打成重伤。　　本案中，如果公安机关将案件移送人民检察院后，人民检察院认为该案还缺少了一些证据材料，则__________。

A．可以退回公安机关补充侦查

B．可以要求侦查人员提供物证、书证、勘验、检查笔录获取、制作的情况

C．可以自行聘请专门知识的人对赵某的伤情进行重新鉴定

D．可以要求公安机关对某些案情进行复验、复查