装置的操作条件如反应温度、时间、压力以及剂油比对催化裂化反应

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装置的操作条件如反应温度、时间、压力以及剂油比对催化裂化反应有何影响？

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参考答案：

剂油比，C/OC/O反映了单位催化剂上有多少原料进行了反应并在其上沉积焦炭；C/O上升，单位催化剂上积炭下降，催化剂活性下降慢；C/O大，原料与催化剂接触更充分，有利于提高反应速度。反应温度，对于床层反应器，反应温度用反应器床层温度；对于提升管反应器，用提升管出口温度表示；提高反应温度，则反应速度增加。时间，单位催化剂上焦炭沉积量主要与催化剂在反应器内的停留时间有关，时间越长积碳越多，反应活性越低。

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社会冲突扮演了一个激发器的角色，它激发了新规范、规则和制度的建立，从而充当了促使敌对双方社会化的代理人。此外，冲突重新肯定了潜伏着的规范，从而强化了对社会生活的参与。作为规范改进和形成的激发器，冲突使得调整已经发生变化了的社会关系成为可能。但是，社会冲突是否有利于内部适应，取决于是在什么样的问题上发生冲突，以及冲突发生的社会结构。

这段文字主要说明：

A．社会冲突有助于社会整合

B．社会冲突的整合功能是需要条件的

C．社会冲突是社会化不充分的表现

D．社会冲突是参与社会生活的方式之一

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How the Americans view love

An old song says that " love makes the world go around" If you watch Americans on Valentine's Day, you can believe it. The whole country breaks out with little red hearts. Lovestruck people give cards, flowers and candy to their sweethearts.

The American concept of love and romance begins with dating. Young people date in several ways. At first they might have group dates with several boys and girls together. Later, they start going on single date - just one boy and one girl.

When two couples go out together, it's called double dating. A friend might even arrange a blind date for you with someone you don't know who your partner will be until the time of the date.

American young people see a date as a time just to have fun. They don't always have a romantic interest in mind. Someone may go out with one person this week, and another the next. After a while, a boy and a girl may decide they want to go steady. This means they think of each other as boyfriend and girlfriend. It also means they don't want to date anyone else. Romance is beginning to bloom.

Romance love is very much a part of American culture. Movies, TV shows and books in America all picture people falling in love. Actually, people all over the world search for happiness in a loving relationship. Maybe love does make the world go around.