【題目】It is important to make new laws and create international standards for these laws similar to _______ concerning international airspace.

A. what B. that C. those D. it

【答案】C

【解析】

試題分析：考查代詞。句意：制定新的法律并為其建立類似于有關(guān)國際空域的國際標準是重要的。those指代standards。concerning 現(xiàn)在分詞作定語，修飾those，即standards。故選C。

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