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- 1Here are your shoes .Plaese _____ A put it on B put on it C put them on D put on them
- 2对于有理数x,根号(2011-x )+根号(x-2011)+1/X等于?
- 3The old man is very healthy.I think he will live_____.A.90 years old B.at 90 years old
- 4客车和货车同时从甲乙两地的中点向相反的方向行驶,5小时后,客车到达甲地,货车距离乙地还有35千米,已知
- 5过去式和过去分词用在什么时候
- 6雷达可用于飞机导航,也可用来监测飞机的飞行.假设某时刻雷达向飞机发射电磁波,电磁波遇到飞机经反射后又被雷达接收,整个过程用时52.4µs.已知电磁波的速度为3.0×108m/s,则飞机离
- 7You can't miss it的意思
- 8(tanx-sinx)/x^2sin^2x 极限x--->0
- 92A12(LY12),2A14(LD10)铝合金的力学性能,包括密度,弹性模量,屈服强度,应用范围等等
- 10most students take trains to school,中的take trains 能替换成take the train吗