STM-N:信息净负荷区STM-1可复用近()2M信号。
A.50个
B.63个
C.76个
D.84个
参考答案:B
逐瘀止血汤的方药组成哪些是正确的
A.归尾、枳壳
B.桃仁、龟甲
C.生地、大黄
D.赤芍、丹皮
E.川断、寄生
He told me that he had two girl-friends, neither of _______ knew anything about the other.
A.whom
B.them
C.which
D.who