题目内容:
To ensure the future of mankind, it is crucial to_______.
A.adopt an optimistic view of the world. A.adopt an optimistic view of the world.
B.draw on our experience from the past.
B.draw on our experience from the past.
C.explore our planet's abundant resources.
C.explore our planet's abundant resources.
D.curb our ambition to reshape history.
D.curb our ambition to reshape history.
参考答案:
答案解析: