下列各点中既位于东半球,又位于北半球的是[ ] A、西经30度,北纬30度 B、

题型:选择题

问题:

下列各点中既位于东半球,又位于北半球的是[ ]

A、西经30度,北纬30度

B、西经10度,北纬10度

C、东经170度,南纬30度

D、东经175度,北纬10度

考点:地球仪和经纬网
题型:选择题

阅读理解。

     In the past, old people liked to live with children and grandchildren while young people could show good

manners to them in this way.

     Now more and more old people prefer living alone and they hope their adult children move out if possible.

     The old idea of keeping many family members in a house is not good. Lots of old people like an easy life

after coming back from work. They would like to be free from heavy housework. Some want to visit places

of interest around the world. Some want to learn something new. Such as painting, dancing, handwriting and

so on. Because they want their dreams to come true. They no longer like to stay at home day by day. We

must understand old people and respect (尊重) their lifestyle.

1. In the past, old people _______.

A. lived alone

B. felt lonely

C. lived without their children

D. live with other family members

2. Why do old people want to live alone now?

A. Because their children want to move away

B. Because they have their own lifestyle

C. Because they have to do so

D. Because their children don't show good manners any more

3. What do old people want to do after coming back from work?

A. They want to do heavy housework at home

B. They want to travel around the world or learn something new

C. They want to live with their children

D. They want to stay at home every day

4. The passage (短文) tells _______.

A. old people are lazy now

B. old people's lifestyle is dangerous

C. old people can choose their own lifestyle

D. old people are getting worse and worse

5. Which is not true?

A. Old people want to live better

B. Young people should respect their parents

C. Old people like travelling

D. Old people like keeping busy with heavy housework

题型:选择题
笔算.
76+548
602-397465-348
900-21762÷8506×4
820×5646×7.
题型:选择题

关于激光打印胶片的叙述,下列错误的是()

A.一般可按激光波长进行分类

B.氦氖激光打印胶片适用的激光波长为670nm

C.半导体红外激光打印胶片有三种适用的激光波长

D.激光打印胶片是一种单面卤化银感光胶片

E.目前市场使用的激光打印胶片大多是感红或感红外的

题型:选择题

角度对超声多普勒的影响,下列哪项不对()

A.速度矢量与超声夹角影响流速的检测

B.角度增大时,频谱振幅被压缩

C.当角度为零时,频谱无法检测

D.检测时应选择合适部位以减小角度对测量的影响

E.血流量测定,角度造成6%的误差是临床所允许的

题型:选择题

项目经理必须具备哪些素质?主要职责是什么?

更多题库