单项选择题

The passage implies that the telegraph cable was built mainly ________.

A．for oceanography studies
B．for business considerations
C．for military purposes
D．for investigating the depths of the oceans

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问答题

1．每个人都想获得财富，财富似乎就是幸福；2．其实世界上有许多东西是财富换不来的。

单项选择题