能传递力矩起着启闭闸板的作用的是（）。A、阀体 B、阀杆 C、传动装置 D、闸板

When I had something difficult to do， I used to ask my mother for help. But she always said， “Do it  yourself， dear.” I was not         at all. I thought she was the               mother in the world!

For example， one day， I decided to      some friends to my home. My bedroom was not in order. Books were everywhere. And I didn’t make the bed. I asked my       to help me clean it，       she still said， “Do it yourself， girl.”

Because of my “lazy mother”， I have to         my clothes and clean my room. I have to help my parents         I even have to go to the dentist by myself. It is really hard  for me to do everything well， but I have learned      .

As time goes by， I understand my mother. She makes me clever and diligent (勤奋的)          a great mother!

A        mother is worth（等值于） one hundred teachers! Don’t you think so?

小题1:A. old                 B. glad             C. thin

小题2:A. tallest             B. most foolish     C. laziest

小题3:A. leave               B. invite               C. visit

小题4:A. mother              B. father               C. brother

小题5:A. or                  B. when             C. but

小题6:A. wash                B. lead             C. knock

小题7:A. do housework        B. go swimming      C. go camping

小题8:A. on show            B. by mistake           C. a lot

小题9:A. Which               B. What             C. Who

小题10:A. young              B. good             C. happy

群体间的互动行为所涉及的群体至少有( )

A．一个

B．两个

C．三个

D．四个

右眼外展神经障碍时，眼球处在何种位置

A．右眼向上方偏位

B．不出现眼球偏位

C．右眼向内下偏斜

D．右眼向内侧偏斜

E．左眼向内偏位

下列疾病中属于X性连锁隐性遗传的为（）

A.低钾型周期性瘫痪

B.少年近端型脊髓性肌萎缩症

C.Andersensyndrome

D.先天性肌强直

E.假肥大型肌营养不良

什么是平衡汽化？