写出近义词
畏惧—____ 凄凉—____ 安慰—____
简陋—____ 野蛮—____ 忧郁—____
苦闷—____ 郑重其事—____
下列函数中,是一次函数的是( )
When they faced such a difficulty, no better plan ____(出现,想出)to them.