有机污染

下列除哪项外，均为人体是一个有机整体的理论依据()

A．治疗方法中外结合

B．结构上不可分割

C．病理上相互影响

D．生理上互相联系

E．诊断上知外察内

People say teenagers are no good. They make too much noise in shopping malls; they drive carelessly up and down America’s main streets. And at least some of the time those things are true. But we shouldn’t forget that there are hard moments in the life of a teenager too.

I watched such a moment not long ago at a woman’s funeral which happened in a church. A teenage grandson stepped forward. Softly he began:“ I want to share a few values that Nana taught me. She never failed to see light in any situation. When our family dog would attack her, what would Nana say? ‘Oh, what beautiful markings that dog has.’ That was Nana.

“She was a strong woman who often lived in the shadow of my grandpa, who was a successful businessman in this city. But she was the one behind the scenes who provided the strength and support for Grandpa’s career,” he said, with a voice now trembling. “That was Nana’s way.”

Finally, in a voice breaking free of sorrow, he looked up and said, “Nana taught me courage. She put up a fight to the end, when she died peacefully, which is how she lived her life. That was Nana’s way, and I hope I can carry on in the same manner.”

There are no hearts as sensitive as those of teenagers, because everything is happening to them for the first time. The trouble with teenagers is that they haven’t learned to be controlled. When that boy rose to speak about the woman who had been his dearest friend, his honest voice dragged each of us out into the open where we could no longer hide. I was moved and learned a lot.

小题1:According to the first paragraph, ______.

A．young people are living a hard life

B．people don’t think highly of the teenagers

C．people shouldn’t forget the young people

D．young people should keep quiet before the public小题2: From the boy’s speech, we know his grandmother ______.

A．was a weak woman living in the shadow of his grandpa

B．liked dogs very much even if they often attacked her

C．could see everything around her though she was old

D．had great influence over the boy when she was alive小题3:We can infer from the passage that the boy ______.

A．was filled with sadness and gave up finishing his talk

B．was always very good at expressing himself

C．practiced a lot in order to give a moving speech

D．had great difficulty in accepting the loss of Nana小题4:The writer wanted to tell the readers ______.

A．the young people were too weak to face certain facts

B．the young people have learned to control themselves

C．the adults could learn something valuable from the young

D．the adults should teach the young how to deal with the death

水泵在标准状况下即水温（）时，泵轴旋转时泵所允许吸上的最大真空高度，叫允许吸上真空高度。

有人说，只要在法定劳动年龄内而没有工作的人，就属于失业人员。这种说法是否准确？

应用GB5096测定石油产品铜片腐蚀时，试验弹密封不好的原因不包含（）

A、螺纹匹配性差

B、材质差

C、密封圈不匹配

D、密封圈老化