对婴儿衣服的消毒可采用()。
A、1%的84消毒液浸泡
B、0.5%的过氧乙酸浸泡
C、1-3%的来苏水浸泡
D、2-4%的来苏水喷洒
参考答案:C
—Excuse me, has the train from Beijing arrived yet?
—________, you are three quarters earlier. It's only 9 now.
A.Unconsciously
B.Instantly
C.Actually
D.Absolutely
淤泥的孔隙比()
A.等于1.0;
B.大于1.0;
C.等于1.5;
D.大于1.5。