把2克盐放入18克水中,盐水的浓度为( )
A.10%
B.11.1%
C.90%
D.900%
22+18×100%=10%;
答:盐水的浓度是10%;
故选:A.
In the context of the Companies Law Cap. 113, explain the following:
(c) redeemable preference shares; and (3 marks)
粒细胞输注,应用时要同时具备几个条件()
A.中性粒细胞绝对值低于0.5×10/L
B.有明显的细菌感染
C.强有力的抗生素治疗48小时无效
D.输注后细胞计数明显升高
E.骨髓造血功能短期内能够恢复