内含朱砂的中成药是（）
A.舒筋丸
B.抱龙丸
C.三七伤药片
D.活血止痛散
E.三品一条枪
参考答案：B
—Why didn't you answer my phone when I phoned you at about 11 p. m. yesterday?
—I ___________and failed to hear the phone.
A．might have slept
B．must be sleeping
C．might be sleeping
D．must have been sleeping
1mm＜厚＜3mm，按重量计含锰量在
