0.1ml标准皮试液中，若是青霉素皮试液含青霉素（）；若是破伤风抗毒素皮试液含破伤风

天然气的（）是形成水合物的辅助条件.

A.流量改变

B.流速改变

C.压力波动

D.温度变化

近年来，中国流动人口逐年增加，2007年来沪人员总量近六百万，约占全市总人口的三分之一。读我国近年来流动人口增长曲线图，回答12～13题。

小题1:12．下列因素中与我国近年来我国流动人口迅速增加关系最不密切的是

A．农村经济的发展，剩余劳动力增多

B．城市经济发展，城市劳动力需求量增长

C．户籍制度改革，为人口流动松绑

D．人口增长迅速，就业压力增大小题2:13．近年来，我国人口流动的主要方向是  

A．东部到西部

B．农村到城市

C．平原到山区

D．经济发达地区到经济欠发达地区

完形填空（共20小题，每小题1.5分,满分30分）阅读下面短文，掌握其大意，然后从1—20题各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最

佳选项。

Sometimes I really doubt whether there is love between my parents. Every day they are very busy trying to __1__ in order to pay the high tuition for my brother and me. They don’t act in the __2_ ways that I read in books or I see on TV. In their opinion, “I love you” is too __3_ for them to say. Sending flowers to each other on Valentine’s Day is even more out of 4__.

One day, my mother was sewing a quilt. I sat down beside her. “Mom, I have a question to ask you. Is there __5__ between you and Dad?” I asked her in a very low voice. She didn’t answer immediately. She 6_ her head and continued to sew the quilt.

I was very worried because I thought I had _7_ her. I was _8__ and I didn’t know what I should do. But at last I heard my mother say the following words:

“Susan,” she said thoughtfully, “Look at this thread．Sometimes it __9_, but most of it disappears in the quilt. The thread really makes the quilt _10__. If life is a quilt, then love should be a thread．It can hardly be seen __11, but it’s really there. Love is _12_.”

I listened carefully but I __13_ her until the next spring. At that time, my father suddenly __14 seriously. My mother had to stay with him in the hospital for a month. When they returned from the hospital, they both looked __15_. It seemed both of them had had a serious illness. After they were back, every day in the morning and dusk, my mother helped my father _16__ on the country road．

“Dad, how are you feeling now?” I asked him one day.

“Susan, don’t __17 me.” he said gently. “To tell you the truth, I just like walking with your mom.”__18_ his eyes, I know he loves my mother deeply.

Once I thought love meant flowers, gifts and 19__. But from this experience, I understand that love is just __20__ in the quilt of our life. Love is inside, making life strong and warm.

1．A．keep fit                B．rise early             C．earn money         D．collect money

2．A．magic                  B．romantic             C．fantastic             D．attractive

3．A．simple                  B．easy                   C．relaxing              D．luxurious

4．A．the question          B．question              C．reach                 D．control

5．A．feeling                  B．love                    C．quarrel               D．smile

6．A．raised                   B．shook                 C．nodded               D．bowed

7．A．hurt                     B．injured                C．wounded            D．harmed

8．A．in great surprise                                    B．in a great embarrassment

C．with deep depression                           D．at extreme sorrow

9．A．happens               B．comes about       C．appears              D．occurs

10．A．warm and soft    B．hot and hard        C．thin and cool        D．strong and durable

11．A．somewhere and sometime                    B．anywhere or anytime

C．more or less                                       D．here and there

12．A．inside                 B．outside               C．faraway            D．nearby

13．A．could believe                                      B．couldn’t understand       

C．wouldn’t recognize                              D．might know

14．A．got sick              B．got stuck            C．threw up             D．became disabled

15．A．quite healthy       B．very pale             C．fairly red             D．much surprised

16．A．jump high           B．go hurriedly        C．run fast              D．walk slowly

17．A．think about         B．talk with             C．worry about        D．laugh at

18．A．Reading              B．Seeing                C．Saying                D．Writing

19．A．fresh roses        B．gold ring           C．sweet kisses       D．beautiful jewelry

20．A．a thread        B．a needle          C．the cloth       D．the cotton

以下哪种制剂不再要求检查片重差异

A．已检查溶出度
B．已检查崩解时限
C．已检查融变时限
D．已检查均匀度
E．已检查释放度

机械零件的轮廓算术平均偏差Ra越小，表示该零件的表面粗糙度（）。