1.选择题- (共2题)
根据短文内容及首字母提示,填写所缺单词。
Hip-hop dancing(街舞) is popular with many young people today. They like it b{#blank#}1{#/blank#} they can invent their own moves. They use this dance to s{#blank#}2{#/blank#} their love for life. It a{#blank#}3{#/blank#} shows that they feel good about life, that they just want to be themselves and enjoy life, and that they are not afraid of problems.
Hip-hop dancing has a h{#blank#}4{#/blank#} of more than 20 years. It f{#blank#}5{#/blank#} began in the 1980s in the US. In early times, it was seen in New York and Los Angles. At that time, many young black people often danced to the m{#blank#}6{#/blank#} in the streets. They used their l{#blank#}7{#/blank#}, arms, heads and even shoulders to dance. Many young people still use most of these moves today.
Hip-hop dancing became popular all over the world because of the 1983 movie Flashdance. Some people performed Hip-hop dancing in the movie People enjoyed their performance. They began to dance l{#blank#}8{#/blank#} them. Then it became popular There are t{#blank#}9{#/blank#} kinds of Hip-hop dancing: new school and old school. More and more young people are l{#blank#}10{#/blank#} Hip-hop dancing. People believe that it is a good way to exercise their bodies, and that it is good for their health.
初,权谓吕蒙曰:“卿今当涂掌事,不可不学!”蒙辞以军中多务。权曰:“孤岂欲卿治经为博士邪!但当涉猎,见往事耳。卿言多务,孰若孤?孤常读书,自以为大有所益。”蒙乃始就学。及鲁肃过寻阳,与蒙论议,大惊曰:“卿今者才略,非复吴下阿蒙!”蒙曰:“士别三日,即更刮目相待,大兄何见事之晚乎!”肃遂拜蒙母,结友而别。
2.单选题- (共2题)
A.高聚物A可能具有弹性,而高聚物B没有弹性 |
B.高聚物A一定是线型高分子材料 |
C.高聚物A一定是体型高分子材料 |
D.高聚物B一定是体型高分子材料 |
3.填空题- (共1题)
离子交换法常用于工业锅炉用水的软化。离子交换剂多种多样,磺化煤(NaR)就是一种阳离子交换剂。
(1)写出用磺化煤软化含Ca2+、Mg2+浓度较高的硬水的化学方程式
(2)用药剂软化法软化过的水总是含有一定浓度的Ca2+、Mg2+,其原因是
(3)参考烧水后的锅或壶中结有水垢的现象分析说明,如果用硬度太高的水作锅炉用水,主要的不利因素是
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【1】题量占比
选择题:(2道)
单选题:(2道)
填空题:(1道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:0
9星难题:3