药毒的诊断要点包括（）
A.突然发病
B.发病前有用药史
C.皮损时隐时现
D.可有一定潜伏期
E.皮损形态多样
参考答案：A, B, D, E
高血压伴有外周血管病患者不宜选用（）
A.氢氯噻嗪
B.利血平
C.钙拮抗剂
D.胍乙啶
E.普萘洛尔
I have _________ all my papers but I still can't find my notes. [ ]
A. looked through
B. looked for
C. looked after
D. looked out
