46 Why did the state change the rules for water use?
(A)Water conservation for the spring and summer is not enough.
(B)A lot of snow fell in the mountain area during the winter.
(C)Bulk of water use in the state is needed for farming areas.
(D)The drought has been over because of climate change.

California on Wednesday suspended its mandatory statewide 25 percent reduction in urban water use, telling local communities to set their own conservation standards after a relatively wet winter and a year of enormousnsavings in urban water use.
加州在星期三停止了原本適用於全州都市的「強制節水25%」命令，並告訴當地社群自行設定他們的節水標準，在歷經一個相對潮濕的冬天和一年巨量儲存下來的都市用水後。 
The new rules are a sharp change in policy for a state struggling to manage one of thenworst droughts in its history.
此新規定是政策上的巨大改變——對於一個曾使勁對抗、控制歷經史上最糟糕的乾旱的州而言。 

They came after a winter in which El Niño storms fell short of what meteorologists projected — particularly in the southern part of the state — but still partly filled parched reservoirs in Northern California and, more critically, partly replenished the mountain snowpack that provides water into the spring and summer.  

降水在冬季的聖嬰現象後到來，這個現象使得降水量未達氣象專家的預測標準—特別是對於加州的南邊而言 —但仍部分地填滿了北加州乾燥的水庫，更重要的是，某種程度上補充了山上天然的雪堆，而這些天然雪堆會在春夏融化，提供用水。 

The state has long struggled to find ways to get water in the north to the people in the south.
加州長期致力於找出「北水南調」的方法。 

The state’s two largest and most important reservoirs are both above their historical averages for this time of year. But reservoirs farther south remain far below average. “該州兩個最大且最重要的水庫，皆超過歷年該時的平均庫存。但是更南邊的水庫仍遠低於平均水準。 

“The snowpack this year was close to historical levels.But warm weather has melted a lot of it away," said Michael Anderson, the state climatologist. 「今年的天然雪堆已逼近歷史水準。但是氣候暖化已經讓大量地使雪堆融化、流失了~」 said Michael Anderson, the state climatologist.

(懶得翻了~大意可參見聖嬰現象發威 加州豪大雨(大紀元)) 

 Why did the state change the rules for water use?
(A)Water conservation for the spring and summer is not enough.
(B)A lot of snow fell in the mountain area during the winter.
(C)Bulk大部分of water use in the state is needed for farming areas.
(D)The drought has been over because of climate change.  

(B)A lot of snow fell in the mountain area during the winter.對應文中" California on Wednesday suspended its mandatory statewide 25 percent reduction in urban water use(即change the rules), telling local communities to set their own conservation standards after a relatively wet winter(表有較充足的水來源)"