在确定型决策方法中，常用的方法有( )。
A．矩阵分析法B．决策树法C．价值分析法D．“小中取大”法
参考答案：C
纤维素还原法制取ClO2是将纤维素水解得到的最终产物C6H12O6与NaClO3在酸性条件下反应生成ClO2。下列叙述中正确的是
□C6H12O6+24NaClO3+12H2SO4=24ClO2↑+□CO2↑+18H2O+12Na2SO4
A．方程式中产物CO2的计量数为6
B．CO2是还原产物，ClO2是氧化产物
C．氧化剂和还原剂的物质的量之比为4:1
D．每生成1 mol CO2需转移24mol电子
根据汉语提示完成句子，每空一词。
1. 裁判把奖金颁给赢得比赛的自行车选手，并向他祝贺。
The judge gave a prize and his ____ to the cyclist who won the ____.
2. 被困在煤矿里两天的矿工们最后得到了营救。
The miners who had been ____ in the mine for two days were finally ____.
3. 记者意识到女孩很害怕，而且尽力地回避问题。
The reporter realized that the girl was ____ and trying to ____ his question.
4. 大火摧毁了离这儿四个街区的两个商店。
The fire ____ two shops which were about four ____ from here.
