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【单选题】

火蝾螈的毒腺长在()。

A.
口腔内部
B.
肛门周围
C.
双眼后侧和脊背两侧
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题目标签:毒腺蝾螈
参考答案:
参考解析:
.
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【单选题】两栖动物:蝾螈

A.
蜥蜴:爬行动物
B.
脊椎动物:壁虎
C.
鱼类:娃娃鱼
D.
哺乳动物:鸵鸟

【单选题】Regeneration of Limbs Most people would agree that it would be wonderful if humans could regenerate limbs. Those who have lost their arms or legs would be complete again. The day is still far off when...

A.
Scientists have lately found that a lizard will grow a new tail if the old one is broken off.
B.
Regeneration is a process discovered centuries ago.
C.
How severe a wound is determines the strength of the current flowing around it.
D.
The lizard, unlike man, is a less-developed animal.

【单选题】恶性蝾螈瘤是指()。

A.
伴有软骨分化的恶性周围神经鞘膜瘤
B.
伴有腺样分化的恶性周围神经鞘膜瘤
C.
伴有横纹肌肉瘤分化的恶性周围神经鞘膜瘤
D.
伴有神经内分泌分化的恶性周围神经鞘膜瘤
E.
伴有血管肉瘤分化的恶性周围神经鞘膜瘤

【单选题】蜘蛛的毒腺分泌的毒液可杀死或麻痹猎物,它位于()

A.
须肢跗节
B.
螯肢基部
C.
第三对步足基部
D.
第三对步足跗节