简述原料的天然性质对矿粉成球的影响。

读下面的句子，把画线部分换上相应的词。    

1．抗战期间，抗日军民创造了无数值得歌颂，值得为之流泪的英雄业绩。     （     ）    

2．心肠凶狠，手段十分毒辣的敌人把年仅12岁的王二小杀害了。（     ）    

3．这小伙子身体强壮，很有力气，干起活来又好又麻利。     （     ）    

4．花木兰在征战中，非常勇敢，善于作战，立下赫赫战功。     （     ）

抽奖式有奖销售最高奖的金额不得超过人民币( )。

A．1万元

B．5万元

C．1000元

D．5000元

依据我国《婚姻法》的规定，下列不属于无效婚姻的是( )。

A．一方或双方有配偶的

B．因胁迫而结婚的

C．双方有禁止结婚的亲属关系的

D．双方未依法履行结婚登记程序的

For many people in the US，sports are not just for fun. They’re almost a “religion”．Thousands of sports fans buy expensive tickets to watch their favorite teams and athletes play in person .Other fans watch the games at home，sticking to their TV sets，never missing a game. Many a wife becomes a “sports widow” during her husband’s favorite season. Americans’ devotion to sports has created a new class：professional athletes. Sports stars often receive million­dollar salaries. Some even make big money by appearing in advertisements for soft drinks，shoes and almost everything.

Sports are an important part of American culture. Throughout their school life，Americans learn to play many sports. Many students try out for the school teams. Athletic events at universities attract scores of fans and benefit the whole community. Many people also enjoy non­competitive activities，like hiking，cycling，horseback riding，camping or hunting.

Many sports were imported from other countries. Europeans brought tennis，golf，bowling and boxing to America .Football and baseball came from other Old World games. Only basketball has a truly American origin. Americans export sports fever as well. Satellites broadcast games to sports fans around the globe. NBA is a good example. The names of American superstars like basketball great Michael Jordan have become household words all over the world.

小题1:．Many a wife becomes a “sports widow” in the US probably because________.

A．they are serious in religion

B．they are devoted to sports

C．their husbands stick to sports

D．their husbands are missing小题2:．Which of the following is NOT true according to the passage?

A．The US sports stars can earn a large sum of money via the media.

B．American students go in for various sports and athletic events.

C．Lots of American people take part in non­competitive activities.

D．American people like to exchange different sports from each other.小题3:．The writer mainly intends to tell us________.

A．how important sports are in America

B．where sports can help to make money

C．why sports are so popular in America

D．what affect Americans’ everyday life

属于ACEI( )。

A．呋塞米
B．美托洛尔
C．雷米普利
D．替米沙坦
E．非洛地平