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【单选题】
马克思主义认为，社会的存在与发展不同于自然界，社会活动是有意识的活动，但从本质上看，社会的存在与发展是客观的，人类社会在本质上是一个客观的物质体系。下列能够集中体现人类社会物质性的客观物质要素是（） ①人的意识 ②生产方式 ③地理环境 ④客观实在A.
①③
B.
①④
C.
②③
D.
③④
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【简答题】Believe it or not, when first (introduce) ______ to Europe, tomato was thought to be poisonous.
【简答题】Believe it or not, when first (introduce) ______ to Europe, tomato was thought to be poisonous.
【单选题】When first ________ to the market, the computer software ． was not a success due to its complexity in operation.
A.
introducing
B.
being introduced
C.
introduced
D.
to be introduced
【单选题】When Europeans first came to Africa, they were amazed to find that many Africans had more than one wife. Because of this practice, many people thought that African men treated women like waves. But th...
A.
interesting
B.
satisfied
C.
surprised
D.
shocked
【简答题】在饼层过滤中，真正发挥拦截颗粒作用的主要是( )而不是( )。
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【简答题】Believe it or not, when first (introduce) ______ to Europe, tomato was thought to be poisonous.
【简答题】Believe it or not, when first (introduce) ______ to Europe, tomato was thought to be poisonous.