患儿口腔舌面满布溃疡,烦躁不宁,啼哭叫扰,口臭涎多,大便干结,舌红苔黄。其证候是()。
A.肺热壅盛
B.心火上炎
C.脾胃积热
D.肝胆火旺
E.虚火上浮
参考答案:C
I feel that one of my main duties ______ a teacher is to help the students to become better learners. [ ]
A. for
B. by
C. as
D. with
结构