癫痫患者服药，最不应（）
A.服药量太小
B.两药同时服
C.只在夜间服
D.服药次数太多
E.突然停药
参考答案：E
元素周期表是由______发现的．______ 发现空气是由氮气和氧气组成的．
Your brother _____ be hungry now—he had lunch only two hours ago! [ ]
A. wouldn't
B. can't
C. mustn't
D. needn't
