After 1850 various states in the United States be
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After 1850,various states in the United States began to pass compulsory school attendance laws.
A:harsh B:diversified C:mandatory D:complicated
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答案:C
本句意思:1850年之后,美国的许多州开始通过义务教育法。compulsory意思是“强制的,义务的”,与mandatory(强制的)意思相近。harsh艰苦的,严酷的;diversified多种多样的,多元的;complicated复杂的,难懂的。
