问题
选择题
2011年为国际化学年．主题为“化学一我们的生活，我们的未来”．下列说法正确的是（ ）
A．制作航天服的聚酯纤维和用于光缆通信的晶体硅都是新型无机非金属材料
B．煤经过干馏加工可变为汽油、柴油等能源
C．石油化工生产中广泛使用过渡元素作催化剂，并加入少量稀土元素改善催化剂的性能
D．福尔马林（甲醛水溶液）可用于浸泡生肉及海产品以防腐保鲜
答案
答案：C
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2011年为国际化学年．主题为“化学一我们的生活，我们的未来”．下列说法正确的是（ ）
A．制作航天服的聚酯纤维和用于光缆通信的晶体硅都是新型无机非金属材料
B．煤经过干馏加工可变为汽油、柴油等能源
C．石油化工生产中广泛使用过渡元素作催化剂，并加入少量稀土元素改善催化剂的性能
D．福尔马林（甲醛水溶液）可用于浸泡生肉及海产品以防腐保鲜
答案：C
After she did a lot of shopping , Mrs. Smith came out of the shop and started to walk to the bus stop. Her bag was so that she had to rest for a few minutes. She stopped a new and bright car. It was just at the side of the road. As she stood there, she saw a policeman _ towards her. "Excuse me, madam," said the policeman. " Can you read ___ sign over there?" “Yes, I can,” said Mrs. Smith. " It 'No Parking'. "Right. Madam. So ____ have you parked your car here? I shall have to give you a parking ticket. " "But this isn't my car," said Mrs. Smith. "Isn't it?" said the policeman, and his face turned red. "I'm very sorry. ___I shall have to put a ticket on the front of the car. " Before he was not able to finish writingthe ticket, woman had arrived. She kissed the policeman and said, "Hello, dear. I knew I could find you here at this time of' the day. Happy birthday! I you abirthday present. " "Thank you, dear, But what is it? " asked the policeman. “Here it is," His wife pointed at the red car. “A big surprise, ___ it?” she continued. “Yes. But you mustn’t leave it on this road for very long. There's a ‘No Parking' sign over there. "the policeman sighed.
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