糖尿病基本病理生理改变是()
A.胰岛素绝对或相对不足
B.胰高血糖素分泌减少
C.胰高血糖素分泌过多
D.生长激素分泌过多
E.血浆胰岛素明显增高
参考答案:A
—Would you like some tea or coffee?
—_______. I'd just like some water. [ ]
A. Neither
B. Either
C. Both
D. None
土壤酶