飞灰采样应尽可能在（）且采样截面前后应有适当直段。 A.水平烟道气流稳定处 B.垂直

海洋产业结构是指各海洋产业部门之间的比例构成关系，其划分依据为国民经济三次产业分类标准。下图为“2004～2011 年宁波市海洋经济产业结构统计图”。完成下列各题。

小题1:有关宁波市海洋产业的说法，正确的是

A．第一产业产值连续下降

B．第二产业生产水平较高

C．第三产业比重持续提升

D．第二产业变化幅度最大小题2:宁波海洋经济产业结构优化升级的途径有

①大力发展滨海旅游业               ②加快发展海洋运输业

③稳定提高海洋捕捞业               ④大力开采滨海油气资源

A．①②

B．②③

C．③④

D．①④

My favorite English teacher could draw humor out of the driest material. It wasn’t forced on us either. He took Samuel Johnson’s dictionary, Addison’s essays, and many other literary wonders from the eighteenth century and made them hilarious, even at eight o’clock in the morning. The thing that amazed me most was that the first time I read these works on my own, some of them seemed dead, but the second time, after his explanation, I couldn’t believe that I hadn’t seen the humor. The stories and poems and plays were suddenly filled with allusions(典故) and irony and hilarious moments. I learned more from him than from any other teacher.

My least favorite English teacher also made people laugh. Some students found him to be wonderfully funny. Many others did not. He assigned journals over a six-week period, to be written every day. At the end of the six weeks I had a notebook full of bits and pieces about my ideas, short stories, reactions to what we had read, and so on. Our teacher announced that we would be grading each other’s journals. Mine was passed to Joe, that class clown, who always behaved in a funny or silly way. He saw it fit to make a joke of and said, “This writing isn’t fit to line the bottom of a birdcage.” Our teacher laughed at that funny remark. It hurt me so much that the anger from it has driven my writing and teaching ever since.

So what makes the difference? Humor is one of the most powerful tools teachers or writers have. It can build up students and classes and make them excited about literature and writing, or it can tear them apart. It is true that humor is either productive or counter-productive and self-defeating.

小题1:The passage mainly discusses ________.

A．teaching

B．literature

C．humor

D．knowledge小题2:The underlined word “hilarious” in Paragraph 1 probably means ________.

A．funny

B．tiring

C．inspiring

D．brilliant小题3:The English teacher the writer disliked most ________.

A．was not able to make students laugh

B．hurt his student’s feelings

C．didn’t let his students do the grading

D．had no sense of humor

新斯的明最强的作用是

A．膀胱逼尿肌兴奋

B．心脏抑制

C．腺体分泌增加

D．骨骼肌兴奋

E．胃肠平滑肌兴奋

计算并填写下表

互感器的预防性试验，测量其铁芯夹紧螺栓的绝缘电阻，采用2500V绝缘电阻表测量，试验时间为1min，应无闪络及击穿现象。