浆液性炎渗出物的主要成分为
A.血浆
B.蛋白质
C.纤维蛋白原
D.红细胞
E.血液
参考答案:A
I _________ born in 1978. [ ]
A. was
B. is
C. am
D. are
以下()是ODU2标称比特速率。
A.255/237×9953280kbit/s
B.239/237×9953280kbit/s
C.238/237×9953280kbit/s
D.255/236×9953280kbit/s