雌激素和孕激素各有哪些生理作用？

按图Ⅱ—26所示，回答下列问题：

被加工件需钻（）个直径为（）的孔。

短文改错（共10小题 ；每小题1.5分, 满分15分 ）

此题要求改正所给短文的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个（√）；如有错误（每行只有一个错误），则按下列情况改正：

该行多一个词 ：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。该行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。注意：原行没有错的不要改正。

Dear Editor,

Recently, my classmates have had a heated discussion about that     

小题1:_______

we should have optional courses(选修课) in high schools. Some students were 小题2:_______

in favor of the optional courses. They say interest is the best teacher   小题3:______

and our spare time will be colorful and meaningful. Students        

小题4:_______

can not only enlarge their knowledges but also improve their abilities.   小题5:_______

However, others are against the idea, said that optional courses         小题6:_______

will take up too much time as well as energy. In addition to, some optional

小题7:_______

courses have something to do with the College Entrance Examination. They   小题8:_______

are afraid they’ll fall behind their classmates if they will take the optional 小题9:_______

courses. I’d like to take one or two of the optional courses, which, I think,

will certain benefit me a lot.                                     

小题10:______

培养真菌的最适宜温度是

A．4～9℃

B．10～15℃

C．16～21℃

D．22～28℃

E．29～37℃

面瘫的恢复，应加用（）

A.膏肓俞

B.命门

C.气海

D.关元

E.足三里

气氨流量采用（）测量。

A.文丘里

B.孔板

C.威力巴

D.渦街