Your conclusion is ____ ____ imagination rather than facts.
游泳池平均水深1.5米，小华身高1.52米，他游泳肯定没有危险。（ ）
My father is very busy and doesn't come back home until midnight.
已知sinx+cosx＜0，sinxcosx＞0，则x是第____ 象限角．
