空气中液化石油气最高浓度低于()%时,对人体健康无害。
A.0.1
B.0.5
C.1
D.1.5
参考答案:C
急性风湿热不伴有心脏炎的患儿阿司匹林治疗的总疗程为
A.6个月
B.12个月
C.3~6周
D.1~3周
E.6~12周
汉译英:“空舱证书;清洁证书”,正确的翻译为( )。
A.Certificate of empty tank;Certificate of fumigation
B.Certificate of fumigation;Certificate of cleanliness
C.Certificate of empty tank;Certificate of cleanliness
D.Certificate of cleanliness;Certificate of empty tank