人体内缺乏烟酸可能会引起（）。
A.角膜炎
B.坏血病
C.脚气病
D.贫血
E.癞皮病
参考答案：E
—Could you tell me ? —Certainly.
A．who is he like
B．who are you waiting for
C．what is his name
D．what he looks like
侏儒zhū rú
