设函数f(x)＝xex，则( )． A．x＝1为f(x)的极大值点 B．x＝1为

Lisa never had the chance to know her father. He and her mother divorced when she was just a young child. Even though he didn’t move far, he never came to visit his children.

Lisa often wondered about her father. What did he looked like and what he was doing. All she knew was his name: Jeff White.

After Lisa grew up, she became a nurse at a hospital, where she would help provide medicine and comfort for patients in their final days. A few weeks ago, she receieved a new patient whose name was Jeff White.

When Jeff came into his room, Lisa asked him if he had any children. Jeff told her that he had two daughters, Lisa and Elly. Lisa couldn’t hold her tears back. She told him, “ I am Lisa, your daughter.”

Jeff embraced her, saying that he was not a good father. And the daghter held his hand and kissed him. Then Jeff began to sing This Magic Moment.

Jeff could have just weeks left to live, so Lisa wanted to make the most of the time she had with him. Lisa also brought her kids to the hospital to meet their grandfather. The kid made cards for him with the words, “ I love you.”

Forgiveness is also a kind of love.

小题1:what happened to Lisa when she was young?

A．Her father lost his job.

B．Her mother died.

C．Her family moved to another country.

D．Her father left the family.小题2:What did Lisa know about her father?

A．Her father’s looks

B．Her father’s name

C．Her father’s hobby

D．Her father’s job小题3:What does the underlined word “patient” mean in this passage?

A．医生

B．病人

C．家属

D．手术小题4:From the passage we know that__________

A．Lisa has a brother.

B．Lisa hates his father.

C．Lisa has a sister.

D．Lisa’s father hates her daughter.小题5:This passage mainly tells us that _______

A．Kids should love their father.

B．The father should love his kids.

C．Forgiveness is also a kind of love.

D．Fathers shouldn’t leave their families.

已知S_n是等差数列{a_n}（n∈N*）的前n项和，且S₆>S₇>S₅，有下列四个命题：

①d＜0；

②S₁₁>0；

③S₁₂＜0；

④数列{S_n}中的最大项为S₁₁。

其中正确的命题是（    ）（将所有正确的命题序号填在横线上）。

关于滴虫性 * * 炎的治疗，下列说法正确的是（）。

A.配偶不需同时治疗

B.哺乳期妇女可以口服甲硝唑

C.按疗程用0.5%乳酸溶液冲洗 * *

D.治疗后复查转阴，可以停止用药

E.局部治疗与全身治疗不用同时进行

患者男性，48岁，时有肋腰部胀满感，且反复出现活动后肉眼血尿，其母45岁时死于尿毒症，多囊肾。该患者最大可能的诊断是

A．多囊肾

B．肾结石

C．肾结核

D．肾肿瘤

E．梗阻性肾病

如图所示，半径为R的导体球所带电荷的电量为q，球外套一个内外半径分别为R₁和R₂的同心介质球壳，其相对介电常数为ε_r，求：

电场强度的分布.