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- 1There are mang tall buildings in the------==_____(centre)part of the city.
- 2动物体生命活动的单位是线粒体?细胞核?细胞质还是细胞?
- 3我写几个近义词,请高手帮帮忙...高分...
- 4Tracy doesn't like to make _.She thinks that readingEnglish story books is a better way to learn
- 5What dose this store sell?All kinds of school things的意思
- 6120℃时,氢气和氧气的混合气体共a L,充分反应后体积为b L(同温同压),氢气和氧气的体积各为多少?
- 7已知d为最小的正整数,b为a的相反数,c为绝对值最小的数,求(a+b)*5+4c+d)的值
- 8People are worrying___the pollution of the air. A.in B.with C.for D.about 填哪个,为什么?
- 9植物多的地方空气中的氧气含量会多于21%吗?
- 10how about this red one的意思