如图所示，A和B两物块的接触面是水平的，A与B保持相对静止一起沿固定斜面匀速下滑

Betty and Harold have been married for years.But one thing still puzzles old Harold.How is it that he can leave Betty and her friend Joan sitting on the sofa,talking,go out to a ballgame,come back three and a half hours later,and they’re still sitting on the sofa?Talking?

What in the world,Harold wonders,do they have to talk about?

Betty shrugs.Talk?We’re friends.

Researching this matter called friendship,psychologist Lilian Rubin spent two years interviewing more than two hundred women and men.No matter what their age,their job,their sex,the results were completely clear:women have more friendships than men,and the difference in the content and the quality of those friendships is “marked and unmistakable.”

More than two-thirds of the single men Rubin interviewed could not name a best friend.Those who could were likely to name a woman.Yet three-quarters of the single women had no problem naming a best friend,and almost always it was a woman.More married men than women named their wife/husband as a best friend,most trusted person,or the one they would turn to in time of emotional distress(感情危机).“Most women,”says Rubin,“identified at least one,usually more,trusted friends to whom they could turn in a troubled moment,and they spoke openly about the importance of these relationships in their lives.”

“In general,”writes Rubin in her new book,“women’s friendships with each other rest on shared emotions and support,but men’s relationships are marked by shared activities.”For the most part,Rubin says,interactions(交往)between men are emotionally controlled-a good fit with  the social requirements of “manly behavior.”

“Even when a man is said to be a best friend,”Robin writes,“the two share little about their innermost feelings.Whereas a woman’s closest female friend might be the first to tell her to leave a failing marriage, it wasn’t unusual to hear a man say he didn’t know his friend’s marriage was in serious trouble until he appeared one night asking if he could sleep on the sofa.”

小题1:What old Harold cannot understand or explain is the fact that_____.

A．he is treated as an outsider rather than a husband

B．women show little interest in ballgames

C．women have so much to share

D．he finds his wife difficult to talk to小题2:Rubin’s study shows that for emotional support a married woman is more likely to  turn to _____.

A．a male friend

B．her parents

C．a female friend

D．her husband小题3:According to the text,which type of behavior is NOT expected of a man by society?

A．Ending his marriage without good reason.

B．Complaining about his marriage trouble.

C．Spending too much time with his friends.

D．Going out to ballgames too often.小题4:Which of the following statements is best supported by the last paragraph?

A．Women are more serious than men about marriage.

B．Men keep their innermost feelings to themselves.

C．Men often take sudden action to end their marriage.

D．Women depend on others in making decisions.小题5:The research done by psychologist Rubin centers around_____.

A．friendships of men and women

B．happy and successful marriages

C．emotional problems in marriage

D．interactions between men and women

蒲黄具有的功效是（）

A.炒炭用收敛止血，生用化瘀利尿

B.炒炭用收敛止血，生用祛风解表

C.炒炭用凉血止血，生用清热杀虫

D.炒炭用凉血止血，生用养阴生津

E.炒炭用收敛止血，生用化瘀止血

重大危险源中报登记的类型不包括（）。

A.易燃、易爆物品

B.职工宿舍

C.有害物质的储罐区

法定免征进口关税的进口货物，免征进口环节增值税，但消费税不能免征。 ( )

unix下显示文件头部的命令是（）。