A:y=x2
B:y=3x
C:y=sinx
D:y=log 12 (x+1)
世界陆地上最大的断裂带是____ ,位于____ 洲.
Many people miss Lei Feng because he was so ____ (help).
读图,回答下面小题:
We have an English test _________ July 5th each year.
25+40=____
36-20=____
48+30=____
25+4=____