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- 1乐音与噪声的区别?
- 2He a___ many people to come to his party yesterday
- 3求解方程 X×11%-300÷(1+17%)×17%= Y (X-300-10%Y)×25%=Z Y+10%Y+Z X-300-(Y+10%Y+Z)=500.25
- 4从大格里拿出8个梨放到小格里,大格里的梨还是比小格里的梨多4个.原来大格里的梨比小格离得梨多( )个?
- 5如图,有一水平传送带以2m/s的速度匀速运动,现将一个m=2kg物体轻轻放在传送带上,若物体与传送带间的动摩擦因数为0.5,则传送带将该物体传送10m的过程中电动机对传送带所做的功
- 6Excuse me ,is that train to Beijing 这个句子哪里错了?怎么改?
- 7I had a very relaxing and happy vacation.happy可以修饰vacation吗
- 8问几道与复数有关题目 好的话会加分
- 9在银行办的签约业务,这个签约用英语怎么说?
- 10短文改错 Nowadays,many school children are addicted computer games