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问题 单项选择题

在关闭碳二加氢反应器旁路的同时，必须确保同时打开反应器进料和出料，防止（）。

A．裂解气压缩机喘振

B．反应器飞温

C．反应器出口不合格

D．裂解气压缩机出口超压

答案

参考答案：A

阅读理解


Some students who are from all around the world are talking about the way they go to school on School Bus Bar at http://tieba.baidu.com/.
In our country, most of the students go to school by school bus. For me, I go to school by school bus every day. It takes me about 30 minutes to get to school, because my home is far from the school. The school bus is not only beautiful but wide and strong. It makes me feel safe when I am in school bus.
Mary Smith from America
I think riding is one of the best ways to go to school because my school isn’t very far from my home. It takes me about 15 minutes. I like riding a bike and I think it’s good for my health. But nowadays, the number of the cars is becoming larger and larger and the crowded traffic will certainly bring about the risk of safety. So my parents hope that I can take the school bus to school.
Li Ping from Wenzhou
I went to school by bus one month ago, but now I walk to school with my parents or my classmates. It’s because the school bus accident. In the accident, lots of students died. I have to get up one hour earlier than before. I spend one and a half hours getting to school. And now it’s very cold outside. I hope to have a school bus.
Bing Bing from Jiangsu
小题1:Mary Smith’s school bus isn’t ______.
A．safeB．beautifulC．strongD．dangerous
小题2:Why does Li Ping go to school by bike?
A．Because she likes riding.
B．Because the crowded traffic.
C．Because her school is far.
D．Because there is no school bus.
小题3:How long does Bing Bing spend on the way to school?
A．30 minutesB．15 minutes
C．one hourD．one and a half hours
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单项选择题

目前的ASP主要针对企业市场，采用（）的方式，所提供的服务可以是集成硬件、软件和网络技术来为小型、中型和大型公司提供解决方案；也可以是安装、配置、定做和管理定制的封装应用软件；有些ASP甚至可以提供商务处理咨询和外包服务。

A.远程租用

B.直接购买

C.代理渠道购买

D.本地租用
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