题干
When he was running after his brother, the boy lost his ___ and had a bad fall.
A：balance
B：chance
C：memory
D：place
答案(点此获取答案解析）
A
When he was running after his brother, the boy lost his ___ and had a bad fall.
A：balance
B：chance
C：memory
D：place
为奇函数，则实数
的值 （ ）
