构成咽淋巴环不包括（）。
A.腺样体
B.咽侧索
C.腭垂
D.咽后壁淋巴滤泡
E.舌扁桃体
参考答案：C
The number of teachers in our school _____ greatly increased last term. A number of teachers in this
school _____ from the countryside.[ ]
A. was; is
B. was; are
C. were; are
D. were; is
（）又被人们称为基本工资制度。
