什么时候我们用乘法和除法?。
用乘法怎样算？
我年纪还小时，我的祖父用这个教我的乘法表。
My grandfather used this to teach my multiplication table when I was little.
用加法、跳跃计数和乘法解答以下各题。
Solve each problem by addition, skip-counting and multiplication.
对于这种接头的碳迁移，用最小二乘法拟合很难得到满意的结果。
It is impossible that they can be imitated in the least square method.
对于这种接头的碳迁移，用最小二乘法拟合很难得到满意的结果。
It is impossible that they can be imitated in the least square method.
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