在反洗强度和反洗时间一定的条件下,影响过滤器运行的主要因素有(),()和()等三个方面。
参考答案:滤速;反洗;水流的均匀性
There is _______ sugar in the bottle. Would you please go to buy ______ now?
A.a little; any
B.little; some
C.a little; some
D.little, any
投保人因重大过失造成保险事故的,依法给予行政处罚。( )