应急过程中存在的主要问题有( )等。A．太多的人员向事故指挥官报告 B．应急过程中

阅读理解。

                                Thumbs Down to Texting  屈指发短信

     Do you have a mobile phone? Do you send text messages to your friends and family?

     Text messaging or "texting" is becoming very popular. But, scientists have discovered that texting can

give us problems with our hands. Be careful! Too much texting can cause swelling in our thumbs. Our

thumbs were not made for pushing small buttons, over and over. Scientists call this problem RSI. We spoke

to a doctor called Harriet Wilson, who treats many sick people with RSI. She says we need to see how much

time we are spending in typing text messages. If we are spending more than 10-15 minutes at once, we could

have problems in the future.

     As mobile phones develop, they are getting smaller with buttons closer together. Texting with a smaller

phone is worse than using a larger phone with bigger buttons. Using a computer keyboard and playing video

games can cause the same problem. So more and more people could find themselves with RSI. Among them,

most are university students and teenagers, as they do not know the risks of spending so much time using

computer, video games and mobile phones. If we don't do something about this, too many young people could

grow up in terrible pain.

1. What is becoming very popular now?

    ____________________________________

2. Does the word "once" mean "one time" in the second passage? 

    ____________________________________

3. What kind of people are easier to have the problem of RSI? 

    ____________________________________

4. What can also cause RSI except texting? 

    ____________________________________

5. Which is easier to cause the problem of RSI, using smaller mobile phones or larger ones? 

    ____________________________________

甘油的用途很广，大量用来制造硝化甘油，硝化甘油是甘油与浓硝酸发生酯化反应（在浓硫酸条件下）生成的三硝酸甘油酯．硝化甘油是制备炸药的原料，在医疗上又是心脏病的急救药．试写出以油脂（主要成分是硬脂酸甘油酯）、氨气、空气、水和氢氧化钠为原料制取硝化甘油的化学方程式．

_______________，_______________，_______________，_______________，_______________．

下列是吴茱萸的适应症的是

A．中寒腹痛，寒疝脚气

B．厥阴头痛，呕吐涎沫

C．脾肾阳虚，五更泻泄

D．呕吐吞酸，或寒或热

E．前述四项均正确

回答落叶的过程。

中部在武汉建设最大的综合交通运输枢纽，理由是什么？