(三)某大厦工程项目，建设单位与施工单位根据《建设工程施工合同文本》签订了工程的总承

某校初一、初二两个年级学生参加社会实践活动，原计划租用48座客车若干辆，但还有24人无座位坐．（1）设原计划租用48座客车x辆，试用含x的代数式表示这两个年级学生的总人数；

（2）现决定租用60座客车，则可比原计划租48座客车少2辆，且所租60座客车中有一辆没有坐满，但这辆车已坐的座位超过36位．请你求出该校这两个年级学生的总人数．

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。（请把此题的答案涂在答题卡相应的位置；E选项涂为A,B；F选项涂为A,C；G选项涂为A,D）

Jane: Oh, that's Mr. Taylor. He is so boring.

Mother: What do you mean?

Jane:   小题1:  And he's so quick tempered, mum.

Mother:  小题2: Are you sure, darling?

Jane: Yes, he gets angry very quickly.

Mother :  小题3:

Jane: And do you know, he spends all his time looking at his reflection in the window, admiring himself.

Mother : Really?  小题4:  

Jane: Because he is vain, that's why! And conceited (自负的). He thinks he knows everything.

Mother: Oh, Jane. Be reasonable. I'm sure you're exaggerating (夸张), Mr. Taylor seems such a nice and kind man.

Jane:  小题5: He's mean (小气的) and cruel.

Mother: Cruel? Now how can a history teacher be cruel?

Jane: Because he only gave me two out of ten marks in my history test.

Mother: Oh, now I understand, Jane. I think you'd better get on with your homework.

A．Well, he isn't.

B．And why does he do it ?

C．His lessons send me to sleep.

D．That's doesn't sound like Mr. Taylor at all.E. Quick tempered? Mr. Taylor ?

F. Yes, he does.

G. He doesn’t like me.

人眼能够看到远近不同的物体，主要是靠什么调节

A．瞳孔

B．视网膜

C．晶状体

D．玻璃体

若某一企业的经营处于盈亏临界状态，错误的说法是（）。

A．此时销售额正处于销售收入线与总成本线的交点

B．此时的经营杠杆系数趋近于无穷小

C．此时的营业销售利润率等于零

D．此时的边际贡献等于固定成本

缓进型高血压病后期可引起（）

A.继发性颗粒状固缩肾

B.原发性细颗粒固缩肾

C.瘢痕形成性固缩肾

D.动脉粥样硬化性固缩肾

E.淤血性肾硬化