阅读理解

       Do you know there are two kinds of football games? One is American football, the other is soccer. In China many young men like playing soccer. It is very popular in China. But the Chinese don't call it soccer. They call it football. There are eleven players in a team. And the ball is round. Only the goal-keeper ( 守门员 ) can play the ball with hands. The other players must play the ball with feet.

       In America soccer is not very popular. I like playing American football more than playing soccer. There are also eleven players in a team. The ball is not round. All the players play the ball with hands and feet. American football is quite different from soccer.

根据短文内容完成句子

1. The Chinese call soccer            .

2. There are            players in a team of soccer and also in a team of American football.

3. In USA, people play football with hands and _____.

4. Only the             can play football hands in England.

5. American football is                from soccer.

称量前先要调节天平的平衡。称量固体药品时，应把被称量的物质放在托盘天平的________盘，____________盘放砝码，砝码由____________到____________放置，用____________取，称量有腐蚀性的药品，应把药品放在____________内称量。托盘天平只能用于粗略的称量，能称准到____________g。