正硫化
参考答案:指交联反应达到一定程度,胶的物理机械性能均达到或接近最佳值,其综合性能最佳。此阶段的硫化称为正硫化。
.短语(20分):.
1. Continue practicing everyday and you can speak fluent English __________(逐渐).
2. You should take up a sport________ (比如) tennis or badminton.
3. If you don’t slow down, you will ________(结果是) in hospital.
4. It is not safe to travel by standing at the roadside hoping to _______(用车接) by passing motorists.
5. The Shanghai EXPO, __________ (发生)in 2010, is considered to be one of the best ever.
6. Living in this area, you are likely to _______ (遭遇)the storm in spring.
7. It is known that smoking _______(对…有坏的影响)our health.
8. I will ________(浏览,翻阅) my notes, but I don’t think I have a record of his name.
9. The matter ______(与…相关)your study surely requires dealing with carefully.
10.The local clubs _______(正努力) to interest more young people.
世贸组织的总部设在( )
A.纽约
B.华盛顿
C.海牙
D.日内瓦