A：season
B：swim
C：climb
一同卵双胞胎兄弟俩长大后身体胖瘦差别很大，其主要原因是
方程|1+x2|=|x|的解是（ ）
选择合适的词组, 并用其正确的形式填在横线上。
run across the road put out be born go on a picnic leave for
be made of have to take one’s advice more than plenty of
