They are among the 250, 000 people under the age of 25 who are out of work in the Netherlands, a group that makes up 40 percent of the nation’s unemployed. A storm of anger boils up at the government-sponsored (政府资助的) youth center, even among those who are continuing their studies.
It seems that some people go out of their way to get into trouble．That’s more or less what happened the night that Nashville Police officer Floyd Hyde was on duty.
，则“-2≤a≤0”是“f（x）在R上单调递增”的 条件．（填充分不必要、必要不充分或充要）
