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设函数 （Ⅰ）求 的单调区间； （Ⅱ）证明：当 时， ； （Ⅲ）证明：当 ，且 …， ， 时， (1) … (2) … .
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【简答题】完形填空。 I work 1 a small shop. It is near a factory. Every day 2 people come to the shop 3 things. My 4 is very near the shop. I get 5 at six, have 6 and then go to work by bike. I put some food in my l...
【简答题】鱼类的生殖方式有卵生、卵胎生、胎生；受精方式有（）两种。
【简答题】I am Kate. I’m a nine-year-old girl. I work in a small shop. Every day, many people come to the shop to buy things. I live in a house. It is near the shop. I usually take some food along in my lun...
【简答题】简述山岳形象美的表现形式
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