外鼻静脉描述有误的是()
A.主要包括内眦静脉和面静脉
B.内眦静脉直接与海绵窦相同
C.无瓣膜
D.主要汇入颈内静脉
E.以上都错
参考答案：B
The thing she wasn't sure was that she failed in this exam. [ ]
A.that
B.which
C.about which
D.in which
果蔬品质的构成
