My personal view is that the price they offer is quite competitive.
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It seems that this method is effectiver than the previous one.
A. 对
B. 错
Researches found several important differences in the way boys and girls learn a foreign language.
A. 对
B. 错
在近似处理条件满足的前提下，多个小惯性环节可以近似成一个（ ）环节，大的惯性环节可以近似处理了成（ ）环节。
A. 惯性、比例
B. 比例、积分
C. 积分、比例
D. 惯性、积分
当系统中存在一个时间常数特别大的惯性环节时，可以近似地将它看成是（）环节。
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