亚热带地区的耕作制是[ ]
A．一年一熟
B．一年两熟
C．一年两熟至三熟
D．一年三熟
答案：C
Let's go to buy some carrots and cabbages. There are few _______ in the fridge.[ ]
A. fruits
B. eggs
C. vegetables
D. meat
胸腔闭式引流术
A．急性脓胸，脓汁稀薄B．慢性局限性脓胸C．慢性脓胸肿有纤维变性D．急性脓胸并支气管胸膜瘘E．肺脓肿
