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【多选题】
轮灌组划分原则:为了便于运行操作和管理,手动控制时,通常一个轮灌组管辖的范围宜集中连片,轮灌顺序可通过协商( )或( )进行;可能情况下,应分散干管流量并尽量减少轮灌次数;在采用自动控制时,为了减少输水干管段的流量,宜采用插花操作的方法划分轮灌组。A.
自上而下
B.
自下而上
C.
从前往后
D.
从后往前
E.
从中往后
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皮皮学刷刷变学霸
举一反三
【判断题】Eveline was not respected at the shop she worked, nor was she at home, though she was a hard-working girl.()
A.
正确
B.
错误
【单选题】She bought the same skirt at a lower price at the same shop where I bought mine because she was a __________ customer.
A.
common
B.
regular
C.
normal
D.
usual
【简答题】A．She stayed at the opening the entire time. B．She wasn't able to attend the show. C．She lost interest in the show and left. D．She wasn't familiar with the artists.
【简答题】A．She is at school. B．She is at the library. C．She is at tile swimming pool. D．She is at home.
【简答题】A．She suggests the man should not look at the job advertisements. B．She suggests nothing. C．She suggests the man should look at the job advertisements. D．She means that the job advertisements are of n...
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