二龄鱼种
参考答案:
将一龄的鱼种再经过一年饲养,体重没有达到食用鱼的规格。
根据下面每句句意、汉语提示及英语解释,在句子右边的横线上写出空白处所缺单词的正确形式,每空一词。
小题1:The girl didn’t give up ____(虽然)she failed again.
小题2:Taking photos is not __________(允许) in most museums.
小题3:Australia is the largest English speaking country in the
_____ (南方) part of the world.
小题4:We can ________(use again) many things in our daily life.
小题5:What a mess! You threw waste papers____(here and there).
气缸式气动执行器用的最多的是快速启闭阀,它可以手动开启/关闭,也可以到现场按气动按钮快速开启,它的气源压力为()
A、0.1~0.3MPa
B、0.3~0.5MPa
C、0.5~0.7MPa
D、0.7~1.0MPa