以下哪种措施有利于C3S的形成?()
A.降低液相粘度
B.减少液相量
C.降低烧成温度
D.缩短烧成带
参考答案:A
一次出血量不超过多少时,不引起全身症状()。
A.250~300ml
B.400ml
C.50~70ml
D.5ml
E.20~30ml
-_____ does the book ____ you?
-Can you guess? [ ]
A How many, spend
B How much , cost
C How much, spend
D How much money , pay