一个精原细胞有两对同源染色体A和a,B和b,经减数分裂后(没有交叉互换),形成的精子种类和数目分别是
A:2、4
B:4、8
C:2、8
D:4、4
Football
People call it “the first sport in the world”. There are two teams in the football field during a game. Each team has eleven players.
Tennis
There is a big net in the middle of the court(球场). Each player has a racket(球拍)in his hand. Two or four players can play it together.
Golf(高尔夫球)
Golf comes from Scotland. It means green, oxygen, light and foot. People play it on the outdoor grass. They hit the white balls into the small holes with a stick.
Basketball
America is the hometown of basketball. This sport is famous for NBA.
There are two teams with ten players on the basketball court. They can't run with the ball in their hands.
对下列划线词语的活用现象分类正确的一项是( )①泣孤舟之嫠妇 ②望西山,始指异之③于其身也,则耻师焉 ④况吾与子渔樵于江渚之上⑤箕踞而遨 ⑥日与其徒上高山⑦假舟楫者,非能水也 ⑧是故圣益圣,愚益愚
2015年10月16日,中国与印度尼西亚正式签署了共同建设和运营雅万高铁(雅加达至万隆)项目协议,标志着中国高铁走出去取得历史性突破。下图为雅万高铁示意图。从上海将建设雅万高铁的机械设备通过海运运往雅加达,要经过( )
下列关于经济全球化的表述正确的是:① 其本质是资本在全球范围内的新一轮扩张② 是由发达资本主义国家主导的 ③ 使全球经济的发展更加不平衡④ 其目的是全球共同发展( )