A：
B：
C：
D：
下图中各点之间的气压关系正确的是（ ）
①A点比B点气压低 ②B点比D点气压高 ③B点和D点气压相等 ④C点比D点气压高
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.
我国最早在南极建立的考察站是
,则落体从
所走过的路程为
