用竖式完成计算.
736÷23=
720×36=
234×56=
436÷86=
736÷23=32
720×36=25920
234×56=13104
436÷86=5…6
In relation to the law of obligations:
(a) Define what is meant by the term ‘pledge’. (2 marks)
长效口服避孕药是()
A.复方炔诺酮片
B.甲地孕酮片
C.复方炔诺孕酮I号片
D.复方氯地孕酮
E.炔诺酮片