事故遇有装载危险货物车辆时，应采取确保人身安全和作业安全的措施后，方可开展救援。
参考答案：对
Can you tell me ____?
A．how good is his spoken English
B．how well his spoken English is
C．how well he speaks English
D．how good he can speak English
30岁妇女，不孕症，痛经5年，查：子宫大小正常，后倾，不活动，压痛，双附件增厚，有压痛，可触及直径6cm大小的囊性肿块，考虑诊断
A．卵巢癌
B．子宫内膜异位症
C．慢性盆腔炎
D．双卵巢囊肿
E．结核性盆腔炎
