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- 1please give the letter to me.改为同义句
- 2sandwich 可数吗?如果可数写出复数形式
- 3把17.8克铜和10.8克铝制成合金,求合金的密度
- 4—How do they ____(relax) on Sunday?—They often sing some songs and dance.
- 5植物通过光合作用将光能转化成了化学能,储存在有机物中._.(判断对错)
- 6用容量瓶配制溶液时,用量筒量取浓溶液时用不用待量取的溶液润洗量筒?
- 7( )A.This is a bird .Its name is Polly.B.This is a bird .It's name is Polly.(请选出正确一组)
- 8请从心理学角度说说人的各种动作能反应什么问题
- 9物理测量题.
- 10称次品时:2-3个要1次,4-9个要2次,10-27个要3次,28-81要4次,82-243个要5次,问6-10个各要几次?