下列关于十二指肠降部的描述哪项正确？（） A.十二指肠大 * *_爱下问搜题

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问题单项选择题 A1/A2型题

下列关于十二指肠降部的描述哪项正确？（）

A.十二指肠大 * * 为副胰管的开口处

B.起于十二指肠下曲

C.移行为十二指肠升部

D.垂直下行于胰头的左侧

E.后内侧壁有胆总管和胰腺管的共同开口

答案

参考答案：E

阅读理解

阅读判断（10分）(根据表格内容判断正误。正确的用A，错误的用B。)

	Sperm whale	Killer whale
Length	15 meters	8 meters
Weight	35 tons	3,600kg
Teeth	50, each up to 20cm long	40, each up to 20cm long
Tail	8 meters long	6 meters long
Food	Squid, lobsters and small sharks	Fish, birds, seals and even whales
Skill	Can dive into the deep cold water	Good swimmer, can jump out of the water

小题1:A killer whale is shorter than a sperm whale in its length.
小题2:A sperm whale is heavier than a killer whale in its weight..
小题3:A killer whale has 50 teeth, each up to 20cm long.
小题4:The tail of a killer whale is longer than a sperm whale.
小题5:A killer whale is a good swimmer.

判断题

前角是在正交平面中测量的前刀面与基面的夹角，有正负和零度之分。前角愈大，刀具愈锋利，刀具强度愈差。