搜题请搜索小程序“爱下问搜题”
问题 单项选择题 A1/A2型题

内因子缺乏可引起（）

A.铁和钙不能吸收

B.淀粉的消化和吸收受障碍

C.脂肪的消化和吸收受障碍

D.维生素B12吸收障碍

E.蛋白质不能消化和吸收

答案

参考答案：D

解析：内因子是由胃腺的壁细胞分泌，具有促进和保护维生素B在回肠黏膜吸收的作用。

补全对话，情景问答

补全对话。

A: Hello. 1. __________________ .Dad?

B: Me, too.

A: But you look worried.  2. __________________?

B: I got a "C" in the English exam.

A:3. __________________

B: I think English is too difficult for me. I don't understand why we Chinese students have to learn it.

A: You know, 4. __________________.

B: You're right.  Though it's very useful, it's too hard.

A: It's hard, but it's important.  5. __________________

B: Really? It's very kind of you.  I'll try harder.

1. _________2. _________ 3. _________4. _________5. _________
查看答案
多项选择题

下列哪项属于不稳定型脊柱骨折？（）

A.Chance骨折

B.两侧腰4、5及横突骨折

C.椎体骨折脱位

D.腰4、5椎体、椎板、关节突骨折

E.第1颈椎半脱位
查看答案