患者赵某,肝硬化拟行门-腔静脉分流术,护士对其行术前准备应除外()。
A.确定肾功能
B.应用维生素K
C.服用不吸收的抗菌剂
D.插胃管
E.清洁灌肠
参考答案:D
You had 8 people In your project,one more person will be joining next week.You know that once the new person joins,the number of communication channels will increase by______.
A.No change in number of communication channels
B.8
C.12
D.20
简述教育目的的层次结构。