电动势的正方向为()。A、电位升的方向 B、电位降的方向 C、电流反方向 D、电子的流动方

题型:单项选择题

问题:

电动势的正方向为()。

A、电位升的方向

B、电位降的方向

C、电流反方向

D、电子的流动方向

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关于用天平测量物体质量的说法不正确的是

A.天平移动位置后,应重新调节平衡

B.不得用手直接取放砝码

C.测量前,可以通过移动游码调节天平平衡

D.天平平衡时,砝码的总质量与游码显示的质量之和等于物体质量

题型:单项选择题

为加强对行政机关依法行政工作的监督,陕西省制订《依法行政监督办法》,上级行政机关要对下级行政机关依法行政工作进行全面监督。该办法于2008年1月1日正式施行。陕西省施行《依法行政监督办法》有利于

①防止权力的滥用,提高行政管理水平  ②加强廉政建设,增强政府的权威  ③保障人民群众的监督权  ④推进政府职能转变,克服越位、不作为等现象

A.①②

B.③④

C.①③

D.②④

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手提式贮压干粉灭火器按下压把,将喷管对准火焰根部横扫,()前推。

A、垂直

B、弯曲

C、遗风

D、平行

题型:单项选择题

4岁患儿,发热,体温38℃,伴结膜炎,发热 1d后出疹,由面部开始,1d后遍及全身。 3d后皮疹消退,枕后、耳后、颈后淋巴结肿大。最可能的诊断是

A.风疹
B.麻疹
C.幼儿急疹
D.猩红热
E.过敏性皮炎

题型:单项选择题

If men are from Mars and women are from Venus, it may explain at least one of their shared beliefs: Men and women can’t be real friends. Many may point to the jealousy that plagues many rational people when a significant other befriends someone of the opposite sex. Boil it down to the inherent differences between the sexes. It just can’t be done. Is it right

Wrong, say relationship experts. "The belief that men and women can’t be friends comes from another era in which women were at home and men were in the workplace, and the only way they could get together was for romance," explains Linda Sapadin, Ph. [D], a psychologist in private practice in Valley Stream, New York. "Now they work together and have sports interests together and socialize together." This cultural shift is encouraging psychologists, sociologists and communications experts to put forth a new message: though it may be tricky, men and women can successfully become close friends. What’s more, there are good reasons for them to do so.

Society has long singled out romance as the prototypical male-female relationship because it spawns babies and keeps the life cycle going; cross-sex friendship, as researchers call it, has been either ignored or trivialized. We have rules for how to act in romantic relationships (flirt, date, get married, have kids) and even same-sex friendships (boys relate by doing activities together, girls by talking and sharing). But there are so few platonic male-female friendships on display in our culture that we’re at a loss even to define these relationships.

A certain 1989 film starring Meg Ryan and Billy Crystal convinced a nation of moviegoers that romance always comes between men and women, making true friendship impossible. "When Harry Met Sally set the potential for male-female friendship back about 25 years," says Michael Monsour, Ph. D., assistant professor of communications at the University of Colorado at Denver and author of Women and Men as Friends: Relationships across the Life Span in the 21st Century. "Almost every time you see a male-female friendship, it winds up turning into romance."

In 1989, Don O’Meara, Ph. D., a sociology professor at the University of Cincinnati-Raymond Walters College, published a landmark study in the journal Sex Roles on the top impediments to cross-sex friendship. Among several challenges he pointed out in his research, society may not be entirely ready for friendships between men and women that have no sexual subtext. People with close friends of the opposite sex are often barraged with nudging, winking and skepticism: "Are you really just friends" This is especially true, says O’Meara, of older adults, who grew up when men and women were off-limits to each other until marriage.

What does the word "befriends" (Line 3, Para. 1 ) most probably mean()

A. Stop being friends with

B. Go on a date with

C. Become friends with

D. Have a fancy or particular liking or desire for

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