炸药的爆轰产物主要有（）等。_爱下问搜题

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问题填空题

炸药的爆轰产物主要有（）等。

答案

参考答案：NH3；CO；CO2

完形填空

There are many stories about people who did not let age stop them in the pursuit of their goals. I’m sure you have heard of recent 70-year-old college graduates, or teenagers who are 1 of many useful things or owners of companies. Actually, it can be done; it just 2 your attitude.
Michael had wanted to run his own business from an early age, but he was 3 a big risk taker. After many years of working for others, he put a business plan together and was about to make the 4 , but his friends told him that at 45 he was too 5 to start his own construction business. They thought it was a young man’s business while Michael needed a steady income to support his family. Michael was discouraged. 6 many of his friends worked in the very field that he was considering starting his business in, he 7 that they knew what was best, so he decided to give up his 8 . But his wife told him that he was foolish to do so. They discussed it and Michael 9 that he’d been using his age as a(n) 10 instead of as an advantage.
Have you put off a goal 11 age or another limiting factor? Does the limiting 12really have as much influence as you think? Age is just a number and each challenge is an opportunity. Your attitude 13 . You’re not too old to try something 14 and never too old to give up on your dreams. They may 15 a bit of adjustment, but if you want something enough, believe in yourself and your desires will have no bounds.

B．discoverers

D．contribution

B．regardless of

D．in spite of

单项选择题 A1/A2型题

抗菌药物是治疗感染的主要药物，下列有关抗菌药的描述中正确的是（）

A.对一切感染都应尽早使用高效广谱抗菌药物

B.在治疗感染性疾病时，考虑使用抗菌药物同时要考虑病原体对抗菌药物的敏感性

C.有了各种抗菌药物，就不会发生医院感染的问题了

D.抗菌药物可用作消毒剂，直接消毒皮肤伤口

E.发烧病人都是因细菌感染引起的，故均可用抗菌药物治愈