氰化物中毒解毒剂首选药物()。
A.亚硝酸钠—硫代硫酸钠方法
B.4-DMAP
C.EDTA
D.BAL
E.以上都不对
参考答案:A
What a mess!Tom,I have told you over and over again not to leave everything .
A.in place
B.in the place
C.out of place
D.out of the place
柱抹灰,在柱四角距地面和顶棚各30~40mm处做标志块。( )