口服对胰岛功能缺乏者仍有降糖作用的药物是（）
A.氯磺丙脲
B.胰岛素
C.球蛋白锌胰岛素
D.低精蛋白锌胰岛素
E.二甲双胍
参考答案：E
He said, "You are sure to get a warm welcome there."
He said that we __ sure to get a warm welcome there. [ ]
A. am
B. was
C. were
D. are
如何区别“某一水样”是一次水（原水）、脱盐水、循环水、污水？
