a不对是因为: 重点是This policy reduces wastage of police time but results in a loss of protection for some residents.
而不是will not cover the expenses police typically incur when they respond to a false alarm.
People will repeat a tale if it fits their purpose. They may not deliberately spread untruths, but neither are they particularly motivated to investigate deeply to determine if the tale they are telling is true.
----investigate deeply to determine if...is ture--->people will not verify the truth of a story that fits their purpose
if true, ------the most serious weakness in the marketing executive's advice? if true--- most-------
Spending on charitable ventures would require Magu to decrease direct advertisements, which are the most effective means of reaching its target customer。。。。。。most effective means
mark, the range of the amounts of money 重点词是range,其他几个project有多重可能,造成range无法确定