电除尘要保持其除尘效果，首先应该对集尘极（） A.清理积灰 B.加大电压 C.清洗

女，69岁，阵发性腹痛伴恶心呕吐7h，10年前因右侧腹股沟斜疝行手术治疗，因急性肠梗阻行CT扫描如图，最可能的诊断是()

A．急性肠梗阻

B．股疝

C．腹外斜疝

D．半月线疝

E．闭孔疝

Growing up, I remember my father as a silent, serious man—not the sort of person around whom one could laugh. As a teenager arriving in America, knowing nothing, I wanted a father who could explain the human journey. In college, when friends called home for advice, I would sink into deep depression for what I did not have.

　　Today, at twenty-seven, I have come to rediscover them in ways that my teenage mind would not allow—as adults and as friends with their own faults and weaknesses.

　　One night after my move back home, I overheard my father on the telephone. There was some trouble. Later, Dad shared the problem with me. Apparently my legal training had earned me some privileges in his eyes. I talked through the problem with Dad, analyzing the purposes of the people involved and offering several negotiation strategies(策略).He listened patiently before finally admitting, “I can’t think like that. I am a simple man.”

　Dad is a brilliant scientist who can deconstruct the building blocks of nature. Yet human nature is a mystery to him. That night I realized that he was simply not skilled at dealing with people, much less the trouble of a conflicted teenager. It’s not in his nature to understand human desires.

　　And so, there it was—it was no one’s fault that my father held no interest in human lives while I placed great importance in them. We are at times born more sensitive, wide-eyed, and dreamy than our parents and become more curious and idealistic than them. Dad perhaps never expected me for a child. And I, who knew Dad as an intelligent man, had never understood that his intelligence did not cover all of my feelings.

　　It has saved me years of questioning and confusion. I now see my parents as people who have other relationships than just Father and Mother. I now overlook their many faults and weaknesses, which once annoyed me.

　　I now know my parents as friends: people who ask me for advice; people who need my support and understanding. And I have come to see my past clearer.

小题1:What was the author’s impression of her father when she was a teenager?

A．Friendly but irresponsible.

B．Intelligent but severe.

C．Cold and aggressive.

D．Caring and communicative.小题2:Why did the author feel depressed when her friends called home?

A．She did not have a phone to call home.

B．Her father did not care about her human journey.

C．Her father was too busy to answer her phone.

D．Her father could not give her appropriate advice.小题3:After the author overheard her father on the telephone, _________ .

A．he blamed her for impoliteness.

B．he rediscovered human nature.

C．he consulted with her about his problem.

D．he changed his attitude towards the author.小题4:Which of the following is the best title of this passage?

A．My Parents as Friends.

B．My Parents as advisers.

C．My father—a serious man.

D．My father—an intelligent scientist.

生理隔离是什么原因导致的（）

A、种类隔离

B、基因隔离

C、地理隔离

D、变异

（）为旅游资源的特点之一。

A、大众性

B、经济性

C、广泛性

D、多样性

企业网银业务的开户和维护操作受理网点为（）

A.一般户开户网点

B.任一一家网点

C.结算账户开户网点

D.基本户开户网点