术前常规禁食的时间是()
A.禁食4小时、禁饮2小时
B.禁食6小时、禁饮2小时
C.禁食8小时、禁饮3小时
D.禁食10小时、禁饮3小时
E.禁食12小时、禁饮4小时
参考答案:E
Jane is honest and never tends to hide her opinion. She must give you a(n) _____suggestion about it.
A.abrupt
B.ambiguous
C.straightforward
D.hesitant
用于肠道致病杆菌的强选择培养基是
A.SS琼脂
B.麦康凯琼脂
C.血琼脂
D.葡萄糖肉汤
E.中国蓝琼脂