原式=3+22-4×22+3
=6.
The Friendship Store ___ is being rebuilt stands ____ the two main roads meet.
A./, where
B.where, where
C.which, where
D.which, which
某一尺寸减其基本尺寸所得的代数差称为()。
A、尺寸偏差
B、尺寸公差
C、形状公差
D、位置公差