work out 是搭配 problem还是question

work out 是搭配 problem还是question 速度英语问题work out the problem 还是 problem?work out the question i can't work out the hard math-------选question还是problem,说明为什 是 I can work out this problem myself.还是 I can work out this work the problem out The maths problem is not easy enough for him to 是work out还是w work out是接plan ,solution 还是接PROBLEM,DIFFICULTY 求具体用法是什么? 是用动名词还是动词不定式working(to work) out the math problem like this problem question vegertable 是可数名词还是不可数名词 Question,problem是可数还是不可数名词?为什麼? the-----is very difficult,I can not work it out用question 还是p I can work out this question e_____.