问题
单项选择题
下列（）属于液化气体的特性。
A．易燃易爆性
B．毒害性和腐蚀性
C．低温和压力危险性及化学反应性
D．以上都是
答案
参考答案：D
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下列（）属于液化气体的特性。
A．易燃易爆性
B．毒害性和腐蚀性
C．低温和压力危险性及化学反应性
D．以上都是
参考答案：D
| 基础知识 从所给单词中选用单词的适当形式填空。 | |
2. She was given a medal as a _______ for her service. 3. The paper should be ___________ in half. 4. The general said all means will be used to end the ___________. 5. It is ___________ to drive through a red light. . 6. I ___________ a great deal of work in the last few months. 7. They scouted around for some antiques to ___________ their new apartment. 8. She agreed to employ me for a ___________ period. 9. I will show ___________ for my friends even if it is only a comforting word. 10. Experts say many current___ plans do not have enough money to provide the benefits promised to workers. 11. She finally ___________ from her room at noon after staying there for the whole morning. 12. He can't ___________ himself to the whirl of modern life in this big city. 13. The company had no choice but ___________ $10 million for advertising. 14. The hunter hurled his___________ at the tiger. 15. The magazine was packaged in a___________ plastic case with attractive graphics. |