题干
— I eat vegetables.
— But they are good for your health! We should eat them every day.
A：often
B：usually
C：always
D：seldom
答案(点此获取答案解析）
D
— I eat vegetables.
— But they are good for your health! We should eat them every day.
A：often
B：usually
C：always
D：seldom
练军犬、警犬，把狗用于军事、案件
侦破等方面