_____ succeed in doing anything. A．Only_爱下问搜题

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问题选择题

_____ succeed in doing anything.

A．Only by working hard we can

B．By only working hard we can

C．Only we can by working hard

D．Only by working hard can we

答案

答案：D

解答题

用竖式计算．
410÷45

填空题

只处理ON/OFF状态的元件，如（），称为位元件。