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- 1太阳能热水器的黑色吸热材料为什么不能涂在吸热管的外表面,而是涂在内表面?
- 2某有机物在空气中完全燃烧
- 3We'll leave some evenings free, that is, if it is all right with you. 怎么翻译,
- 4many children like eating ___ food
- 5have a good time的同义词
- 6Li ping sometimes goes to school on foot(改为同义句)
- 7三个大小一样的正方形拼成的长方形的棱长之和是60厘米,一个小正方形的表面积( ),体积( ).
- 8在等腰Rt△ABC中,∠C=90°,AC=1,过点C作直线l∥AB,F是l上的一点,且AB=AF,则点F到直线BC的距离为 _ .
- 9My parents hope me to work hard at school.
- 10有理数乘方的值的规律