按公式计算此小儿的体重约是
A.8kgB.9kgC.10kgD.12kgE.14kg
参考答案:D
采取通风,隔热等措施,可防止粉尘危害。
Do you mind _____ here? [ ]
A. I smoke
B. my smoking
C. to smoke
D. me smoke