MRI与CT相比，MRI检查对下列哪项病变显示不敏感()A．室管膜下出血 B．硬膜下

阅读理解。

     "Depend on yourself" is what nature says to everyone. Parents can help you. Teachers can help you. But

all these only help you to help yourself.

     There have been many great men in history. But many of them were very poor in childhood,and had no

uncles,aunts and friends to help them. Schools were few and not very good. They could not depend on them

for an education．They saw how it was,and began to work with their own efforts to know something. They

worked their own way up to fame.

     One of the most famous teachers in England used to tell his pupils, "I can't make worthy (优秀的) men of

you, but I can help you make men of yourselves."

      Some young men have the best of everything, but they are to be pitied (同情). They can never do things

successfully if they don't see their weak point and change their attitudes (态度) to study. They are nobody

now, and will be nobody as long as (只要) they don't follow the advice of their parents and teachers, and

depend on their own efforts.

1."Depend on yourself"  in this passage means "_____ ".

A. rely on (依靠) nature

B. wait for others to help

C. rely on your own efforts

D. count on your parents' help

2. Many of the great men in history succeeded because they _____.

A. made great efforts to learn and work

B. wanted very much to become famous

C. were very poor in childhood

D. could not depend on schools for an education

3. According to the famous teacher in England,a teacher can _____.

A. make his pupils worthy men

B. help his pupils find a way to fame

C. make his pupils strength and courage

D. help his pupils make themselves become useful

4. If young people depend on their own efforts, _____.

A. they are to be pitied

B. they can succeed in their life

C. they are nothing forever

D. they can't change their attitudes

5. The best title for this passage is_____ .

A. How to Be Famous

B. What Nature Says to Every Man

C. Depend on Yourself

D. Depend on Your Teachers and Parents

地球上0°经线是（　　）

A．本初子午线

B．赤道

C．北回归线

D．南回归线

水位计的连通管为什么要保温？

近代中国半殖民地半封建社会最主要的矛盾是( )

A．帝国主义和中 * * 的矛盾
B．封建主义和人民大众的矛盾
C．地主阶级和农民阶级的矛盾
D．无产阶级和资产阶级的矛盾

生态学指的环境是生物体以外的非生物环境。( )