乳酶生能分解糖类生成乳酸，使（）
A.胃内酸度升高
B.胃内酸度降低
C.肠内酸度升高
D.肠内酸度降低
E.不改变胃和肠内酸度
参考答案：C
— Can I pay the bill by check?
— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
A．shall
B．need
C．will
D．can
何证多寐，饭后尤甚（）。
A.湿盛困脾
B.瘀血阻滞
C.脾气虚弱
D.阳气虚弱
E.心血不足
