Which of the following best summarizes the main idea of the text?
A．More financial support is a key to new technology.
B．Greater focus is required for ocean exploration.
C．Oil production has done great damage to the sea.
D．The United States can benefit more from deep-diving.

A.More
B.
B．Greater
C.
C．Oil
D.
D．The
E.


【参考答案】

B
主旨题。纵观全篇，作者从新近发生的事件，从技术、资金的角度分析，提出进一步进行海洋探索的可能性和必要性，并通......

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