油层酸化是将配制好的酸液从地面经井筒注入地层中，用于除去近井_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

油层酸化是将配制好的酸液从地面经井筒注入地层中，用于除去近井地带的堵塞物，提高地层（），降低流动阻力。

A、孔隙度

B、含油饱和度

C、渗透率

D、压力

答案

参考答案：C

完形填空

完型填空。

    Television has now come to nearly every family. It has   1 a very important part in   2 life. School children
in the US watch TV about twenty-five hours 3 . Some parents think the television is good 4 their children,
because it helps them to learn about their country and the world.   5 the help of some educational programmes,
children do so   6 in school.
      7 parents do not let their children   8 TV too much. They say that some of the TV programmes are not
good and children often   9 bad things from them.
    Man have invented many things which have brought us much convenience (方便). Television is one of them.
If it 10 carefully planned, watching TV can be good for children

( ) 1. A. become
(    ) 2. A. people
( ) 3. A. a day
(   ) 4. A. at
(    ) 5. A. With
(    ) 6. A. well
( ) 7. A. Other
(   ) 8. A. to swatch
(    ) 9. A. study
(    ) 10. A. /

B. becomes
B. people's
B. one day
B. of
B. under
B. good
B. The other
B. watch
B. learn
B. will be

C. became
C. peoples
C. one week
C. for
C. By
C. better
C. Another
C. watching
C. listen
C. Was

D. becoming
D. peoples'
D. a week
D. to
D. Below
D. best
D. Others
D. watched
D. see
D. is

单项选择题

初乳与过渡乳中含有哪种较高的免疫球蛋白，能增强呼吸道和消化道的抵抗力（）

A、IgG

B、IgE

C、IgM

D、IgA