单词:dihydride catalyst
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Unit 13 Always on time! Vocabulary Task Answers 6:15 gets up 6:30 takes a shower 7:20 catches the bus 8:15 has a class 12:30 eats lunch 3:00 goes to work 5:30 takes a break 11:00 goes to bed Script Ja
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新编英语教程第五册unit02_1_silence_in_communication
Unit 9 Computer Technology After-Class Reading PASSAGE I Microchips No invention in history has so quickly spread throughout the world or so deeply touched so many parts of human existence as the micr
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how much(多少钱) big(大的) small(小的) long(长的) short(短的)apple(苹果) banana(香蕉) pear(梨) orange(橙子)watermelon(西瓜) are(是) they 它(他、她)们