题目内容

术前常规禁食的时间是

A. 禁食4小时，禁水2小时
B. 禁食6小时，禁水2小时
C. 禁食8小时，禁水3小时
D. 禁食10小时，禁水3小时
E. 禁食12小时，禁水4小时

查看答案

搜索结果不匹配？点我反馈

更多问题

如果( )等于或者大于社会折现率，表现建设项目资源配置的经济效率达到了可以被接受的水平。

A. 费用效益率
B. 经济净现值
C. 经济内部效益率
D. 效益费用比

To______ the students' life on campus, the university has established many recreational facilities.

A. verify
B. convey
C. enrich
D. enhance

The mother said she would______ her son washing the dishes if he could finish his assignment before supper.

A. let down
B. let alone
C. let off
D. let out

After the collision, he examined the considerable______ to his car.

A. ruin
B. deficiency
C. penetration
D. innovation