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【多选题】
下列选项中符合肉芽组织特征的有：A.
较多的多核巨细胞
B.
较多的内皮细胞
C.
较多的成纤维细胞
D.
较多的类上皮细胞
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反馈参考答案：
举一反三
【简答题】They ___________ (can，go) out because the light’s on.
【单选题】Later, they found it easier to travel because ______.
A.
they could travel by wagons
B.
they could ride on their tame animals and go across water in hollowed tree trunks
C.
the roads were splendid
D.
the climates were favorable
【简答题】果汁的酶法澄清主要使用____酶、____酶和____酶。
【单选题】Our teacher told us that light ______ faster than sound.
A.
travels
B.
travelled
C.
travel
D.
will travel
【单选题】By making us imagine that we travel at the speed of light, the author tries to ________ .
A.
show us how fast we can travel in the universe
B.
give us an idea of how fast light travels
C.
tell us how close the moon and the sun are to us
D.
give us an idea of how big the universe is
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