维修后的管道,涂漆前必须将旧涂层彻底清除干净,并重新除锈或表面清理后,才能重涂各类涂料。
参考答案:对
在有的商场,我们看到一种有意思的商品陈列:鸡翅旁边放着炸鸡调料;香皂旁边陈列着肥皂盒;剃须刀架边配着剃刀片。上述陈列的几组商品是[ ]
A.互补商品
B.替代商品
C.价值量相同的商品
D.使用价值相同的商品
Which of the following is
NOT
A. It’s in the center area of South Korea.B. It has excellent transport and environmental conditions.C. The relocation will cost $94 million.D. It is not named yet.