试题与答案

单子叶植物根的横断面一般构造是() A.内皮层环较明显 B.中央有髓 C.中央无髓

题型:多项选择题

题目:

单子叶植物根的横断面一般构造是()

A.内皮层环较明显

B.中央有髓

C.中央无髓

D.外表无木栓层

E.木部较为明显

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析:阑尾的神经由肠系膜上动脉周围的交感神经纤维经腹腔丛和内脏小神经传入,因其传入的脊髓节段在第10、11胸节,所以急性阑尾炎发病开始时,常表现为该脊神经所分布的脐周牵涉痛。【该题针对“基础...

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