2,4,8,16,32,( )
A.48 B.64 C.128 D.256
参考答案:B
何谓大量咯血()。
A.日咯血量约100ml
B.日咯血量100~200ml
C.一次咯血量约100ml
D.一次咯血量约200ml
E.一次咯血量≥300ml
I can’t go with you now. I _____ a lesson at nine o’clock this morning.
A will be giving B would give C give D will give