On the wall hung a picture,__________ colour is blue.
A.whose
B.of which
C.which
D.its
答案:A
作为判别渗出液和漏出液的指示之一,积液总蛋白与血清总蛋白的比值,其界线为()
A.0.3
B.0.5
C.0.6
D.0.7
E.0.9
票据的变造条件