The news shocked the public, to great co

题型:选择题

问题:

The news shocked the public,    to great concern  about students’safey at school.

A.having led

B.led

C.leading

D.to lead

考点:现在分词的被动式现在分词不定式的被动式过去分词
题型:选择题

出现下列哪种情况提示心肺代偿功能欠佳()。

A.屏气试验超过30s

B.登上三楼无显著气喘

C.可从事一般家务劳动

D.睡眠呼吸暂停综合征

E.老年性慢性支气管炎合并肺心病

题型:选择题

阅读理解

     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 (成就) in their lives. In my first year of college

especially, I saw people get themselves down 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. When they

disappeared for good(长久地), no one took much notice, for they had already disappeared in spirit after

that first test.

     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. 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.

1. The phrase "get themselves down" (Para. 1) probably means ______.

A. tell lies  

B. lose confidence    

C. avoid dangers    

D. waste time

2. When the two students dropped out (退学), no one took much notice because ______.

A. they had long lost heart in class performance

B. they were absent from class too often

C. they didn't get on well with other students

D. they were so much cut off from the rest of the class

3. According to the passage, the two students failed in their study because of their ______.

A. shyness    

B. proudness    

C. self-doubt    

D. laziness

4. The author thinks that the two students should ______.

A. give up their college education        

B. learn from other students

C. feel happy because they are in college      

D. try hard before giving up

题型:选择题

自然界中的磷素循环中,只有( )才能被植物吸收。

A.可溶性磷酸盐
B.有机磷化物
C.不溶性磷
D.无机磷化物

题型:选择题

Many researchers have found greater dependence and obedience in very young girls, greater autonomy and activity in boys. When a barrier is set up to separate children from their mothers, boys try to knock it down; girls cry helplessly. There is little doubt that mother’s encouragement or discouragement—of such behavior plays a major role in determining adult personality. For example, a mother often stimulates male autonomy by throwing a toy far away from her young son, thus silently suggesting to him that he leaves her to get it.
Animal studies suggest that there may be a biological factor in material behavior; mothers of some monkeys punish their male babies earlier and more often than their female offspring; they also touch their female babies more often and act more protectively toward them.
As for the controversial question of female "passivity", psychologist Helen Deutsh believes that the concept has been misunderstood. "There is no contradiction between being feminine and working. The self can be active in both men and women," she says. It is only in love and sex that passivity is particularly appropriate for women. As she sees it, passivity is no more than a king of openness and warmth; it does not mean "inactivity of emptiness".
Another controversy ranges over the effect of hormones. Aggressive women; who discount hormonal influence, disagree violently with scientific researchers, who almost unanimously agree that hormones help determine how people feel and act. So far, there have been few studies of male hormones, but scientists think they may eventually discover hormonal cycles in men that produce cyclic changes in mood and behavior. As for females, studies have indicated that 49 percent of female medical and surgical admissions, most psychiatric hospital admission and 62 percent of violent crimes among women prisoners are related with hormonal cycles in women.

Many studies show that ______ .

A.boys are active and obedient to girls

B.girls are independent facing boys

C.boys are brave in getting what they want

D.girls don’t do anything in front of difficulties

题型:选择题

离心泵的开停步骤?

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