兰索拉唑标准剂量为()
A.20mg
B.40mg
C.30mg
D.60mg
参考答案:C
如果9x2-12x+k是一个完全平方式,那么k=______.
I ______ go to bed ______ my father came back.
A.won’t, until
B.didn’t, until
C.will, until
D./, when