题目内容
(请给出正确答案)
[主观题]
The author concludes in the last paragraph that ______.A.governments have spent lots of ti
The author concludes in the last paragraph that ______.
A.governments have spent lots of time in solving the ageing problem
B.population ageing is a hard problem, but it needs to be solved urgently
C.people are too busy to solve the population ageing problem
D.much time and effort will be lost in solving the ageing problem
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