小肠上皮吸收葡萄糖是通过（）
A、钠钾泵
B、钠离子通道
C、钠离子协同运输
D、氢离子协同运输
参考答案：C
— I don't suppose the police know who did it.
— Well, surprisingly they do. A man has been arrested and _____ now. [ ]
A. has been questioned
B. is being questioned
C. is questioning
D. has questioned
下列哪些疾病或情况可出现潮式呼吸（）
A.肋骨骨折
B.青年人熟睡中
C.神经衰弱
D.胸膜炎
E.脑膜炎
