皮皮学，免费搜题
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【单选题】
下列哪一种氧化还原体系的氧化还原电位最大?A.
羧酸→丙酮酸
B.
CoQ( 氧化型 ) → CoQ( 还原型 )
C.
Cyta Fe 2+ → Cyta Fe 3+
D.
Cytb Fe 3+ → Cytb Fe 2+
E.
NAD + → NADH
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举一反三
【判断题】Historians believe the story of the American nation and its culture begins with the 1492 discovery of the new world by English explorer Christopher Columbus.
A.
正确
B.
错误
【单选题】Explorer Christopher Columbus landed in America, but he thought he ________ the East India.
A.
had discovered
B.
has discovered
C.
discovered
D.
was discovering
【简答题】The first known and sustained contact between the Americas and the rest of the world,however,began with the famous voyage of an_________explorer,Christopher Columbus,funded by the Spanish rulers Ferdi...
【判断题】Columbus Day is especially popular for Italian American because Christopher Columbus who first discovered America is an Italian explorer
A.
正确
B.
错误
【单选题】The American Continent was discovered by Christopher Columbus but was named after ________ another explorer.
A.
Marco Polo
B.
Christopher Columbus
C.
Ferdinand Magellan
D.
Amerigo Vespucci
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