肾虚腰痛，日久不愈，无明显阴阳偏虚，宜选用
A．左归丸B．右归丸C．大补元煎D．大补阴丸E．青娥丸
参考答案：E
对新工人必须进行（）并经安全考试合格后，方准分配工作。
A.四级安全教育
B.三级安全教育
C.二级安全教育
D.一级安全教育
— I've practiced a lot, but my spoken English isn't improving. What should I do?
— Why don't you ask your teacher for his _____?
A. plan
B. advice
C. reason
D. decision
