教育领导班子应由思想家、组织家和实干家组成。这讲的是领导班子的（）
A.知识结构
B.专业结构
C.智能结构
D.个性结构
参考答案：C
下列各项中字形不合规范的一项是（ ）
A．委蛇 露相 靡丽
B．箭镞 挣脱 朴硝
C．皴裂 畏葸 鞭苔
D．连累 惭怍 拓片
Has Jack finished his homework yet?
I've no idea, But he _____ it the whole afternoon. [ ]
A. would do
B. was doing
C. did
D. had done
