题目内容

《本草纲目》载药( )

A. 730种
B. 850种
C. 1892种
D. 365种
E. 1815种

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《新修本草》载药( )

A. 730种
B. 850种
C. 1892种
D. 365种
E. 1815种

西红花的药用部分为( )

A. 香蒲科水烛香蒲的花粉
B. 鸢尾科番红花的柱头
C. 菊科红花不带子房的管状花
D. 木兰科望春花的花蕾
E. 菊科菊的头状花序

A lot of people are their own enemies. They regard themselves as unlikely to succeed in college and often feel that there have been no accomplishments in their lives. In my first year of college especially, I saw people get themselves down all too quickly. There were two students in my class who failed the first test and seemed to give up immediately. From that day on, they walked into the classroom carrying defeat on their shoulders the way other students carried textbooks under their arms. Both students hang on until about mid term. When they disappeared for good, no one took much notice, for they had already disappeared in spirit after that first test.They are not the only people in whom I have seen the self-doubt do its work. I have really wanted to shake them by the shoulders and say: "You are not dead. Be proud and pleased that you have brought yourself here to college. Be someone. Breathe. Hope. Act. “Such people should not use self-doubts as an excuse for not trying. They should pull themselves together and get to work. They should start taking notes in class and trying to learn. Above all, they should not give up without even trying. The underlined sentence "Both students hang on until about mid-term" (Para. 1) Tells us that()

A. they didn’t study well
B. they didn’t take part in class activities
C. they didn’t take notes in class
D. they didn’t finish their study that term

What point is the author making by stating that farmers could carry nearly all their tools on their backs()

A. Farmers had few tools before the agricultural revolutions.
B. Americans were traditionally self-reliant.
C. life on the farm was extremely difficult.
D. New tools were designed to the portable.

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