题目内容

[ A] theorize
[ B] originate
[ C] invent
[ D] propose

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心理学家皮亚杰把人的认知发展分为四个阶段,其中具体运算阶段指()。

The term "unionization" (Line l, Paragraph 5) refers to
[A] mobilizing all workers to seize power.
[ B] gathering workers into an organized group.
[ C] working out strategies to raise workers' pay.
[ D] changing wage policies for women and minority men.

[ A] had gone
[ B] went
[ C] was going
[ D] would have gone

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