This method saved half the labor that______to combat the insects separately.A．would not ha

The bottom half shows ______ this money came from.

The last paragraph of this passage indicates thatA．labor resisted a reduction of money－wag

There is ______ the fact that the new method has greatly raised labor productivity.A．not d

What is this passage mainly concerned with？A．The functions of the Department of Labor in A

According to the interview, which of the following methods about saving time is NOT true？A

_________（47）A.At this time you pay half the amou