喉罩LMA插入失败率为()
A.2%
B.3%
C.4%
D.5%
E.10%
参考答案:D
On the table _____ two dictionaries.You may look up the word in either of them.
A.lie
B.lays
C.laid
D.lies
28岁,以突发左下腹痛2小时入院。体格检查:面色苍白,心率110次/分,血压80/60mmHg,B超提示子宫大小正常,左侧附件区囊性占位,盆腔中度积液。最有价值的病史()
A.有无昏厥
B.有无停经史
C.有无外伤史
D.有无恶心、呕吐
E.腹痛情况