下列物质中，与水作用会发生化学自热着火的是( )。A．金属钠 B．甘油 C．有机过

女性生殖器3大恶性肿瘤是指（）

A.宫颈癌、子宫内膜癌、子宫肉瘤

B.宫颈癌、子宫内膜癌、绒癌

C.宫颈癌、子宫内膜癌、外阴癌

D.宫颈癌、子宫内膜癌、卵巢癌

E.宫颈癌、卵巢癌、绒癌

Beauty has always been regarded as something admirable. Almost everyone thinks attractive people are happier and healthier, have better marriages and have more respectable jobs. Personal consultants (顾问) give them better advice for finding jobs. Even judges are softer on attractive persons. But in the executive circle (政界), beauty can become a liability.

While attractiveness is a positive thing for a man’s rise, it is harmful to a woman. Handsome male executives were considered as having more honesty than plainer men; effort and ability were thought to be the reasons for their success. Attractive female executives were considered to have less honesty than unattractive ones; their success was attributed not to ability but to factors such as luck. All unattractive women executives were thought to have more honesty and to be more capable than the attractive female executives.

Why are attractive woman not thought to be able? An attractive woman is thought to be more feminine (女性的) and an attractive man more masculine (男性的) than the less attractive ones. Thus, an attractive woman has an advantage in traditionally female jobs, but an attractive woman in a traditionally masculine position appears to lack the "masculine" qualities required.

This is true even in politics. Anne Bowman recently published a study on the effects of attractiveness on political candidates (候选人). She asked 125 undergraduate students to rank two groups of photographs, one of men and one of women in order of attractiveness. The students were told the photographs were of candidates for political offices. They were asked lo rank them again, in the order they would vote for them.

The results showed that attractive males completely defeated unattractive men, but the woman who had been ranked most attractive always received the fewest votes.

小题1:In traditionally female jobs, attractiveness _____.

A．strengthens the feminine qualities required

B．makes women look more honest and capable

C．is of great importance to women

D．often enables women to succeed quickly小题2:Bowman’s experiment shows that when it comes to politics, attractiveness _____.

A．turns out to be an obstacle to men

B．affects men and women alike

C．has as little effect on men as on women

D．is more of an obstacle than a benefit to women小题3:It can be inferred from the passage that people's views on beauty are often _____.

A．practical

B．old-fashioned

C．prejudiced (偏见的)

D．serious小题4:The author writes this passage to _____.

A．discuss the negative aspects of being attractive

B．give advice to job-seekers who are attractive

C．demand equal rights for women

D．emphasize the importance of appearance

XT3307型水车的最大行驶速度为？

当汽轮机乏汽量和冷却水温升均一定时，则可认为（）。

A、冷却倍率近似为常数；

B、冷却水流量近似为常数；

C、冷却水量随冷却水温下降而下降；

D、冷却水出口温度必然一定

当空气中二氧化碳浓度达到（）时，人呼吸感到急促。

A.3%；

B.5%；

C.10%～20%；

D.20%～25