测量误差主要来源于（）。 A.外界条件 B.仪器条件 C.观测者的自身条件 D.地质

Life in the future(将来) is different from now. There are not any paper money in the future. People use their credit cards when they go shopping. There are not so many stores. At weekends, people needn’t go out. They usually do some shopping at home on the Internet.

Children don’t get up early to go to school. They have lessons at home on the  Internet, too. Teachers teach their students and give them homework on the Internet. Children give the homework to their teachers on the Internet, too.

People don’t need to do much work. There are more robots(机器人). Robots do hard work for people. Parents don’t cook or wash clothes. A cooking robot cooks breakfast. In fact, robots do all the housework for us.

There are more holidays. Parents spend much time with their children. They spend a lot of time travelling around the world.

I think life in the future is very interesting. Do you think so?

小题1:What is the Chinese for the underlined phrase “credit cards”?   

A．身份证

B．户口本

C．信用卡

D．优惠卡小题2:Teachers teach their students __________ in the future.

A．in the classroom

B．over the radio

C．on TV

D．on the Internet小题3:In the future, robots can __________ for us.

A．eat dinner

B．cook meals

C．watch films

D．talk with friends小题4:How does the writer like the life in the future? He thinks it is__________.

A．hard

B．easy

C．interesting

D．healthy小题5:Which is the best title(标题) for the passage?

A．Life in the future

B．Studying at home

C．Working at home

D．A hard life

冠状动脉起自（）。

A.冠状窦

B.升主动脉的主动脉窦

C.主动脉弓

D.胸主动脉

E.左心室

社会主义民主的本质是( )。

A．如何组织 * *
B．如何行使统治
C．哪个阶级居统治地位
D．人民当家作主

一牙周病患者，全口牙拔除两周后即做全口义齿修复，半年后义齿固位差，张口说话易脱落。最可能的原因是

A．人工牙排列偏唇颊侧

B．颌位关系错误

C．垂直距离过高

D．基托边缘过度伸展

E．牙槽嵴吸收

静态混合器适用范围中不包括（）。

A、液--液

B、液--气

C、液--固

D、气--气