寒

阅读理解。

    Mr. Green likes making friends very much. He always invites friends to his home for

dinner. One day, one of his friends, Peter, comes to his home with two businessmen.

    One of them called Tim never goes to schoo1. He is very afraid that he cannot answer

questions correctly. But Peter says, "Don't be afraid, Tim. Just don't talk about anything

if you don't understand it."

    But Tim drinks too much and begins to be careless. One of the guests asks him, "Do you

like Edison (爱迪生)?" Tim answers, "It's so great. I like drinking it very much."

    All the people in the room keep quiet for five minutes,and then they begin to laugh.

After dinner, Peter goes out of the house with the two businessmen. He says to Tim, "You

are so foolish.(愚蠢的)" 

    Tim says, "Why? I can answer the question. Am I wrong?" Peter says, "We all know that

Edison is not a kind of drink. It's a kind of music."

1. Mr. Green likes _____. [ ]

A. making friends

B. drinking

C. talking

D. 1istening to music

2. That day Mr. Green _____ at home. [ ]

A. calls Tiin

B. sings for Peter

C. plays games

D. invites fiiends for dinner

3. Who is foolish?[ ]

A. Peter

B. Tim

C. Edison

D. Both Peter and Tim

点P（a，b）是平面直角坐标系中的任意一点，则点P（a，b）关于x轴的对称点P₁的坐标是（    ）；P（a，b）关于y轴的对称点P₂的坐标是（    ）。

已知S_n是等差数列{a_n}（n∈N*）的前n项和，且S₆>S₇>S₅，有下列四个命题：

①d＜0；

②S₁₁>0；

③S₁₂＜0；

④数列{S_n}中的最大项为S₁₁。

其中正确的命题是（    ）（将所有正确的命题序号填在横线上）。

下列非代理型CM模式的表述中，正确的是( )。

A．CM单位一般在设计阶段介入，对设计单位有指令权

B．CM单位一般在设计阶段介入，对设计单位没有指令权

C．CM单位在施工阶段介入，对施工单位有指令权

D．CM单位在施工阶段介入，对施工单位没有指令权

电器开关箱为什么不能装设在有灌木杂草和杂物的位置？