发布时间:2025-01-25 05:24:45
虎头鲨属热带鱼,冬天需要在鱼缸中加上自动加热器温度设定在27~30度,夏天则要注意严防高温可适当加入冰块降温(冰块要乾净水结成的),水质要乾净酸碱值要控制好HP5~6左右,吃一般的鱼饲料即可,水过滤棉要注意乾净,可再水族箱里养一些水草。
某工厂为支援抗震救灾赶制一批帐篷第一天生产了这批帐篷总数的20第二天生产了总数的二十分之七
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