氰化物中毒的解毒疗法，首选（）
A.亚硝酸盐
B.小剂量美蓝
C.纳洛酮
D.二巯丙醇
E.亚硝酸盐-硫代硫酸钠
参考答案：E
I don’t think possible for us to learn a foreign language well without hard work.
A．them
B．this
C．it
D．that
