In 1490 or so, the main progress mentioned in this passage was . An invention of an Italian professor .

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问题 In 1490 or so, the main progress mentioned in this passage was ______.
An invention of an Italian professor ______.

选项 A、gave later inventors the idea of moving air around in diving devices
B、can "clean" the air
C、was used to remove moisture
D、was nothing but a plan

答案D

解析

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本试题收录于：公共英语五级笔试题库公共英语（PETS）分类

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In 1490 or so, the main progress mentioned in this passage was . An invention of an Italian professor .

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和基础教育一样，医疗卫生_________地拥有公共产品的属性。但在市场化的改革中，它们都曾经_________了公益性质，也因而带来了种种矛盾。依次填入画横线部分最恰当的一项是()。

Whenshehandedinhertermpaperlate,Diane________astorythathercomputerhadcrashed.Thetruthisthatshedoesn’tevenu

In 1490 or so, the main progress mentioned in this passage was . An invention of an Italian professor .

Stressleveliscloselyrelatedto.Thelessadvantagedpeopleare,thegreater.

桥式起重机车轮轮缘磨损量超过原厚度的(　　)时，则应报废更换。

和基础教育一样，医疗卫生_地拥有公共产品的属性。但在市场化的改革中，它们都曾经_了公益性质，也因而带来了种种矛盾。依次填入画横线部分最恰当的一项是()。