下面漫画《考古》给我们的哲学启示是[ ] ①办事情要抓重点，牵住牛鼻子②要积极

乘坐沿江和长江客轮，持全价票旅客可随身携带免费行李（）千克。

A.10

B.15

C.20

D.30

根据短文内容，从短文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。

     The organization, Keep Time for Children, was started in 2002 to make people realize the importance of

family time on weekends, particularly for families with school age children. 1_____ We will try to help parents

take one day off on weekends to be with their family. 

     2_____ What children want and need most is to spend time with their parents, not with toys or taking part

in activities. But with more and more people working on weekends, many children of school age don't see their

parents anywhere near as often as they should. 

     3_____ The movement is designed for families of all types and sizes under increasing pressure to work on

weekends. Because weekends are the very time when school age children are at home and in need of their

parents, we are going to put forward a Family Day Bill (议案) to the government. 4_____ It is aimed to solve

the problems of increasing "shift (换班的)-parenting" and of young children being left "home alone" on

weekends. 

     5_____ If parents have a day off, they can spend a lot of time and energy with their children to share their

happiness.

A. Keep Time for Children is now starting a movement.

B. The law is likely to make sure that parents take good care of their children.

C. Our aim is mainly to encourage parents to spend time with their children.

D. An American set up the organization.

E. It would give every parent of children under the age of 16 the right in law to a weekend day off each week.

F. Our time is the most important thing that we can give our children.

G. Parents who do not share enough time with their children are to blame.

有一种气体，可能是H₂或CO，下列方法能够鉴别它们的是[ ]

A．观察气体是否无色

B．闻气味是否具有刺激性

C．通入氧化铜中，加热，观察黑色粉末是否变红色

D．用小试管分别取少量气体点燃，然后，往试管中加入几滴澄清石灰水，观察石灰水是否变浑浊

下图为甲病（A—a）和乙病（B—b）的遗传系谱图，其中乙病为伴性遗传病，请回答下列问题：

若Ⅲ一8和Ⅲ一10结婚，生育子女中只患一种病的概率是（）

马笼头的压花打捞帽要求具有标准的几何外径，以便于（）。

A.与仪器连接

B.打捞工具打捞

C.选择加工材料

D.加工制作