A.15kg
B.1.5kg
C.0.15kg
D.0.015kg
答案:C
I was so excited last night that it was a long time _____I got to sleep.[ ]
A. that
B. since
C. before
D. when
孔子认为教学过程是()?
A.教师为中心的教的过程
B.学生为中心的学的过程
C.教师与学生双边活动的过程
D.学生自主建构的过程