内是增函数, 且是奇函数的是( A ) .
B. 
C. 
D. 
的奇偶性描述正确的是( C ) .第二节：书面表达(满分25分)
假如你叫李华，你在报纸上看到家庭污染对环境的巨大危害。你打算写信给某英文报刊阐述你的观点。内容要点如下：
1． 许多人认为环境污染是由工业造成的，与家庭没有多大关系。而研究表明，工业污染只占总污染的41%，而家庭污染却占到59%。
2． 有的专家说，每个人每天平均制造0.9公斤垃圾。塑料袋，空调，冰箱，汽车等排出的废气，对人类危害极大。
3． 作为家庭的一个成员，你该怎么办？
注意：词数：100词左右，信件开头和结尾已给出，不计入总词数。
提示：空调： air-conditioner 冰箱：refrigerator
May, 8, 2006
Dear editor,
I have already read in the newspaper that
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Yours,
  请在各题目答题区域内作答，超出黑色矩形边框限定区域的答案无效。 |
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___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ Yours, Li Hua |
请在各题目答题区域内作答，超出黑色矩形边框限定区域的答案无效。
)，在该行右边横线上写出该加的词。