注射剂过滤除菌可采用()
A.细号砂滤棒
B.3号垂熔玻璃漏斗
C.0.22um的微孔滤膜
D.布氏漏斗
E.板框滤器
参考答案:C
简述肠外营养的并发症。
If P is a set of integers and 3 is in P, is every positive multiple of 3 in P ?()
(1)If x is in P,then x+3 is in P.
(2)If x is in p, then x-3 is in p.
A.条件(1)充分,但条件(2)不充分.
B.条件(2)充分,但条件(1)不充分.
C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D.条件(1)充分,条件(2)也充分.
E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.