省煤器再循环门的开/关是如何规定的？

Roger Alvarez, 22, was one of the 52 percent of students who didn’t make it through his senior year at Manual Arts High School in Los Angeles.

He dropped out several years ago, but by the time he was in ninth grade, Alvarez says he already knew he wasn’t going to graduate.

“There’s a certain amount of knowledge you have to have when you enter in a specific grade, and I didn’t have it.” Alvarez says,“Every class I used to go in, I was like, ‘Do I know this? I don’t know this.’”

It was a shameful attitude, he tells his former English teacher, Antero Garcia, 29.

“You were determined to help me, but what was I willing to give? I could have actually tried.”

For his part, Garcia wants to know how he could have reached out to Alvarez better, but Alvarez says Garcia had always been helpful.

“I mean, you could cheer me up, and then I see other students doing way better,” Alvarez says,“So then, I get nervous. I get stuck, and then my motivation goes to the floor.” He felt the situation was hopeless.

“You talked to me like if I could do it, but inside me, I knew I couldn’t.” he tells Garcia,“I just didn’t want you to think that I’m…stupid.”

Now, school is a life tool that Alvarez says he’s missing—but his teacher isn’t to blame.

“Always, I just wanted you to know…you were a good teacher, and I always respected you.” he tells Garcia,“Some teachers, I felt like they only wanted to teach a certain group of people. But you looked at me and you paid attention.”

“Maybe it didn’t get me to graduate, but there’re a lot of teachers, they don’t take the time to take a look. And it was never your fault.”

Alvarez now works the night shift at a loading dock(码头). He still hopes to get his degree one day.

小题1:When Alvarez entered a grade, he was sure that ___________.

A．he wasn’t going to pass the class

B．he would do better than other students

C．he might learn an amount of knowledge

D．he would try his best to learn at class小题2:By saying “my motivation goes to the floor”,  Alvarez meant __________.

A．he hid his goal from others

B．he lost heart gradually

C．he built up his motivation

D．he fell to the ground completely小题3:In the opinion of Alvarez, most teachers _______.

A．paid no attention to teaching

B．had no time to read books

C．didn’t care about what he did

D．showed no respect to students小题4:The passage mainly tells us that _________.

A．a dropout complains about being treated badly

B．a dropout plans to get his degree again

C．a dropout shows respect for not graduating

D．a dropout has thanks to his teacher not blame

广告版面的空间分割主要依靠形式为（）

A.图形

B.色彩

C.版式

D.文字

分馏塔顶压力高而气压机进口压力低有哪些原因？

误解性危机，是指企业自身的工作或产品质量等方面没有什么问题，没有出现任何损害公众的事件，但是由于种种原因，被公众误解怀疑，受到公众无端指责，企业由此而陷入危机之中。事故性危机是指由于企业自身的失职、失误，或者管理工作中出现问题，或者产品质量上出现问题，而引发的危机事件。
根据上述定义，下列属于误解性危机的是______。

A．某品牌奶粉因含有过量的三聚氰胺而遭到公众退货
B．某工厂的许多生产设备在玉树大地震中严重受损，导致该工厂停产
C．甲企业仿造乙企业商标生产了大量的不合格产品，导致公众排斥该品牌产品
D．在许多杂志转载了种植花卉可能对人体造成伤害的不实报道后，花卉行业惨遭损失

三原色由三种基本原色构成，叠加形的三原色为红色、蓝色和（）。

A.黄色

B.品红色

C.青色

D.绿色