A-A+
The use of blue lights to reduce suicides __.
问题详情
The use of blue lights to reduce suicides __. A.has no result yet B.is proved effective C.is welcomed by suicides D.has been refused by stations
参考答案
正确答案:A
全文中多处提到,无论从科学的角度还是试验的角度,都还没有结果表明蓝色的灯是否会真的起作用。