A.逐渐减小
B.逐渐增大
C.不变
D.先减小后增大
答案:D
How long his dog ? [ ]
A. has, been dead
B. has, died
C. has, been died
D. has, dead
依据教育活动的存在形式,可以把教育分为实体教育和()。
A.正规教育
B.学校教育
C.虚拟教育
D.社会教育