问题
选择题
53. In 1989, a(n) _______law was passed by the United Nations to stop people putting waste into sea.
A．national
B．local
C．internet
D．International
答案
答案：D
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53. In 1989, a(n) _______law was passed by the United Nations to stop people putting waste into sea.
A．national
B．local
C．internet
D．International
答案：D