【单选题】Chinese netizens (网民) are more likely to use the Internet for social contact reasons,so they use blogs and chatting rooms on a larger_____
【简答题】100℃时气相反应A→Y+z为二级反应.若从纯A开始在等容下进行反应,10min后系统总压力为24.58kPa,其中A的摩尔分数为0.1085,求: (1) 10min时A的转化率; (2) 反应的速率常数。
【简答题】Recently, Chinese netizens (网民) enjoy themselves on “growing and stealing crops” on the Internet. This is a called “Happy Farms”. Now more and more people are joining in the , and getting add...
【单选题】Baidu is the most popular ( ) with Chinese netizens (网民).
【单选题】Chinese netizens (网民) doubt ______they called Western freedom of speech , seeing the dishonest reports about the recent riots(暴乱) in Tibet by some Western media.
【简答题】恒容反应器中气相反应动力学研究 在一恒容反应器中,丁二烯发生如下气相二聚反应: 2C 4 H 6 →(C 4 H 6 ) 2 反应温度为326℃,实验中测得系统总压力p t 与时间t的关系列于下表。试根据表中所列数据建立反应的动力学方程。在该实验条件下可假设反应为不可逆的。
【简答题】(5)若s是int型变量,且s=8,则表达式s%2+(s+1)%2的值为()。
【简答题】Can you imagine a world without the Internet? It’s surprising to think about it. Now, China has more tha n 162 million Internet users, according to the China Internet Network Information Centre. This ...