下列属于准公共需要的是()
A.国防
B.环保
C.医疗
D.防疫
参考答案:C
解析:国防、环保、防疫都属于纯社会公共需要,只有医疗是介于社会公共需要与个体需要之间的准公共需要。
I don't think it very expensive to buy a family computer here.
-- Really? I'll buy _______ next week.
A.it
B.this
C.one
D.mine
()是冷气机高压液态与低压液态之分界点。