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【单选题】
______ Lucy got up early this morning, ______ she was late for sc.hool. [ ]A.
/, /
B.
Though, but
C.
Though, /
D.
But, though
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【简答题】完形填空。 One Saturday afternoon, Kate went to buy something for her sister and herself. As Kate was coming out of a 1 , a young lady walked towards her. She said she was Miss Green — a good friend of Kat...
【单选题】有关肺泡隔的错误选项是
A.
是相邻肺泡之间的薄层结缔组织
B.
其内有密集的有孔毛细血管
C.
有丰富的弹性纤维
D.
弹性纤维有回缩肺泡的作用
E.
吸烟可加速弹性纤维退化进程
【单选题】有关肺泡隔的错误选项是
A.
是相邻肺泡之间的薄层结缔组织
B.
其内有丰富的有孔毛细血管
C.
有丰富的弹性纤维
D.
弹性纤维有回缩肺泡的作用
E.
肺泡隔内的肺巨噬细胞是构成机体防御系统的重要成分之一
【简答题】One Saturday afternoon, Kate went to buy something for her sister and herself. As Kate was coming out of a 1 , a young lady walked towards her. She said she was Miss Green --- a good friend of Kate’s ...
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