下列情况能使气压计的示数增大的是（ ） A．把气压计从山下拿到山顶 B．把气压计

下列有关细胞的叙述，正确的是[ ]

A．研究证明有些内质网还可以合成磷脂，除满足自身需要外，还参与高尔基体、线粒体、核糖体等细胞器的形成

B．核糖体是蛋白质的“装配机器”，由蛋白质和mRNA组成

C．中心体在洋葱根尖分生区细胞有丝分裂过程中发挥重要作用

D．酵母菌细胞具有染色体，其代谢类型是异养兼性厌氧型

某房地产开发商与施工单位签订了一份总承包合同，合同中约定施工单位每月20日向开发商上报本月的已完工程量进行计量审核，开发公司根据审核后工程量支付工程进度款，则（）。

A.不管出现什么情况，施工单位都必须先行施工，否则就要承担违约责任

B.如果施工单位有确切证据开发商不能支付工程款，就可以中止履行合同

C.如果施工单位有确切证据证明开发商不能支付工程款，就可以终止履行合同

D.开发商不能以施工单位未及时申报已完工程量为由拒绝付款

I was eight when my neighbors got a TV. It was small and expensive, but that didn’t matter. IT WAS WONDERFUL. Everyone in the building came up to the fifth floor to see this latest wonder of the modern world. That was in 1948.

Soon, a lot of people got a TV, but not us. My parents didn’t think it was good for children. Being a good son, I didn’t argue with them. But I secretly watch TV—at my friends’ homes.

By 1955, televisions weren’t so expensive and were much larger. My parents still thought they were not good for us, but my sisters insisted, saying they were the only people in the neighborhood who didn’t have one. All their friends talked about certain programs and actors, but they couldn’t. Their friends laughed at them, which made them feel very unhappy. My youngest sister cried, saying she was never going back to school and that life without a TV wasn’t worth living. Nothing my parents said made her feel better. The next morning, without telling us, they went out and got a new TV.

When we were young our parents allowed us to watch TV for two hours a night. And we couldn’t watch until our homework was finished. But after a year or two, TV wasn’t exciting or new anymore. It became just another part of our lives like shoes or soap. My parents still had fears about TV. We were going to forget how to read, and TV was going to fill our minds with violence, they said.

Today people still argue about the value of TV. Nobody can deny the power of TV, which has a powerful influence on our lives. On average, Americans spend 30 hours a week watching TV. Is this influence good or bad? This is an unanswerable question indeed: It is hard enough to measure influence; and it is even harder to decide what is good and what isn’t. What is good, I suppose, is that many people are concerned about TV’s influence and that we have the power to change what we don’t like.

The people of Monhegan Island, 18 kilometers away off the coast of Maine, don’t have electricity, and they decided; once again, that they liked that way. Electricity, they think, would make life too easy and spoil their way of life. Maybe the young people wouldn’t want to go to town dances anymore. Maybe they would be more interested in staying at home and watching TV.

小题1:How old was the author, when their family got a TV?

A．About 15.

B．8.

C．18.

D．About 10.小题2:The author’s parents finally decided to buy a TV because _______.

A．they wanted to meet their daughters’ needs .

B．the children couldn’t go to school without a TV

C．the sisters would like to be like their friends

D．they had to do as the youngest daughter told them to小题3:The author thinks “to judge whether a TV’s influence is good or bad” is ________.

A．concerning

B．hard

C．meaningless

D．important小题4:The last paragraph is written to show ________.

A．the disadvantage of TV

B．TV influences people a great deal

C．the advantage of TV

D．we can change what we don’t like

CT机房的工作环境要求中，不包括

A．电源功率大，频率稳定

B．符合磁屏蔽要求

C．保持40%～60%的相对湿度

D．清洁、防尘的工作环境

E．保持18～22℃的室温

发热