建筑内墙装修材料中聚氯乙烯塑料的燃烧性能属于哪个级别()
A. A级(不燃)
B.B1级(难燃)
C.B2级(可燃)
D.B3级(易燃)
参考答案:B
Which is NOT a distress signal? ()
A.A continuous sounding with any fog signal apparatus
B.A signal sent by radiotelephone consisting of the spoken word "Mayday"
C.An International Code Signal of N.C.
D.The firing of green star rockets or shells
农业银行信用中期票据承销企业客户应当符合以下条件()
A.外部主体评级高于(含)AA-
B.行内信用评级高于(含)BBB
C.债项评级为A-1
D.拟注册额度为4亿