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【判断题】
体循环的功能是将营养送到细胞组织,肺循环的功能则是将氧气送到细胞组织。A.
正确
B.
错误
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【简答题】一束准直的单色光正入射到一个直径为1cm的会聚透镜，透镜焦距为50cm，测得透镜焦平面上衍射图样中央亮斑的直径是0.00666cm，则光长为 nm。
【单选题】Marx called ____ “the real father of English materialism and experimental science of modern times in general.”
A.
Edmund Spencer
B.
Ben Jonson
C.
Francis Bacon
D.
Christopher Marlowe
【简答题】Do you think Christopher Reeve is a superhero in the real life? Why or why not?
【简答题】一束准直的单色光正入射到一个直径为1cm的会聚透镜，透镜焦距为50cm，光长λ=546nm，则透镜焦平面上衍射图样中央亮斑的直径是( )。
【简答题】一束准直的单色光正入射到一个直径为 1cm 的汇聚透镜,透镜焦距为 50cm ,测得透镜焦平面上衍射图样中央亮斑的直径是 cm ,则光长为 nm 。
【简答题】_______ was a German businessman and a pioneer in the field of archaeology. His findings confirm the real existence of Troy, which was, for a long time, regarded as the kingdom of literary fiction by ...
【简答题】一束准直的单色光正入射到一个直径为1cm的会聚透镜，透镜焦距为50cm，测得透镜焦平面上衍射图样中央亮斑的直径是6.66×10 -3 cm，则光长为______nm．
【简答题】Children in the United States learn that Christopher Columbus (1) ______________________ , but since there were already millions of people (2)____________________________ when he arrived, what is Colu...
【单选题】_______ was a German businessman and a pioneer in the field of archaeology. His findings confirm the real existence of Troy, which was, for a long time, regarded as the kingdom of literary fiction by ...
A.
Heinrich Schliemann
B.
Christopher Marlowe
C.
Doctor Faustus
D.
Wolfgang Petersen
【简答题】一束准直的单色光正入射到一个直径为1cm的会聚透镜,透镜焦距为50cm,测得透镜焦平面上衍射图样中央亮斑的直径是 cm, 则光长为________nm。
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