生态平衡破坏的原因及其解决对策。

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问题:

生态平衡破坏的原因及其解决对策。

考点:农学生态学生态学题库
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以下不是现代养猪场的生产特点的是()。

A、生产周期短

B、全年均衡生产

C、劳动效率高

D、投资小,利润高。

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Where have all the boys gone?You may be able to find them in the gym, at work or hanging out, but there’s one important place where boys are under­represented, and the problem seems to be getting worse. These days, at high school graduation ceremonies, there are a lot more girls than boys.

In fact, every year, 10 percent more girls graduate from high school than boys. “I think that there’s a tendency to focus on boys as problems at this point, rather than recognize that boys have problems,” says Joanne Max, PhD. Experts say the problems start in grade school, where there’s often an emphasis on sports instead of reading, for example. “I think that with boys there’s some idea that it’s not masculine(男子汉的)to read,” says Rob Jenkins, an English professor.

There’s also a shortage of male teachers as role models. “I think boys need role models, so if you’re a boy and you don’t have a dad in your home and then you have one male teacher and it’s your athletic coach then I don’t think you have a message that education is very important,” says Carol Carter, another expert. In addition, classrooms often have too little activity and too much passive listening, which is not conducive(有益的)to boys’ learning.

Experts say parents can fight back in many ways. Read to your sons early and often; show by your actions that you value their education. Ask them about their schoolwork, offer help, drop by their classroom and finally, appeal to their competitive spirit: challenge them to do better and help them understand that their future depends on it.

小题1:The underlined part “one important place” in Paragraph 1 refers to “______”.

A.classrooms

B.factories

C.high school graduation ceremonies

D.gyms小题2:According to the passage,boys have the problem that they think ______.

A.reading is more important than sports

B.it is shameful for boys to read

C.boys should not work as a teacher

D.boys lack the gift for reading小题3:Carol Carter’s words implied that ______.

A.parents play an important role in education

B.athletic coaches contribute a lot to education

C.lack of male teachers affects boys’ attitudes to school work

D.classrooms lack enough activities that are suitable for boys小题4:According to experts,parents should do the following except ______.

A.often read to their sons when they are young

B.keep an eye on their sons’ studies at school

C.encourage their sons to compete with others

D.prevent their sons from taking part in sports

题型:问答题 简答题

A.三七

B.蒲黄

C.茜草

D.白及

E.白茅根

既能凉血止血,又能活血祛瘀的药物是()

A.A

B.B

C.C

D.D

E.E

题型:问答题 简答题

PTC主要用于()。

A.确定胆道阻塞的部位和性质

B.慢性胰腺炎的诊断

C.胰体癌的诊断

D.胰岛细胞瘤的诊断

E.胰腺假囊肿的诊断

题型:问答题 简答题

女性病人导尿,插管深度为()

A.2~3cm

B.4~6cm

C.6~8cm

D.7~9cm

E.9~10cm

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