根据虾苗游泳状态，高质量虾苗应为（）。
A.虾苗在瓢中游水时成团不分开
B.虾苗在瓢中一直游泳
C.附瓢时无力
D.附壁时有力，游泳时直线前进
参考答案：D
The couple set ________ some money every month for their future use even though their income can only make ends meet.
某个账户的每日预算为300元，刚推广账户下线时，实际消费一定不会超过300
