问题描述：
[单选]
中国自20世纪60年代开始进行海洋油气资源的自营勘探和开发。（）
A．Since the 1960s,Chinbegan to explore and exploit offshore oil and gas resources on its own．
B．eginning from the 1960s, China began to explore and exploit offshore oil and gas resources on its own．
C．As early as the 1960s,China began to explore and exploit offshore oil and gas resources on its own．
D．Until the 1960s, China began to explore anexploit offshore oil angas resources on its own．
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