1080P,中P表示()
A.逐行
B.隔行
C.逐竖
D.隔竖
参考答案:A
9. “Do you have any questions ________ clear to you?” the teacher asked.
A.which are not
B.that isn’t
C.not to
D.To
预后PH值的正常值为()
A、9-10
B、6-7
C、7-8
D、12-14