各级公路都必须保证的视距是()。
A.超车视距
B.停车视距
C.错车视距
D.会车视距
参考答案:B
When he saw me in the street, he stopped ________ to me. [ ]
A. talking
B. to talk
C. talked
D. talks
脾破裂的处理中,下列哪项是错误的
A.破裂严重时,可行脾切除术
B.破裂较轻时,可行脾修补术
C.待失血性休克好转后再行手术
D.可收集腹腔内血液行自家输血
E.输血及补平衡液,以纠正血容量不足