单项选择题
A. running down B. sitting down C. looking down D. putting down
The paint is a little （）(厚).A.thinnerB.thinC.thickerD.t...
单项选择题The paint is a little （）(厚).
A.thinner B.thin C.thicker D.tight
Paint should be evenly （）(分布).A.spreadB.suppliedC.distr...
单项选择题Paint should be evenly （）(分布).
A.spread B.supplied C.distributed D.spanner
The main （）(保护层) is paint.A. primer boatB. protective c...
单项选择题The main （）(保护层) is paint.
A. primer boat B. protective coat C. top coat D. under coat
