对淀粉有消化作用的消化酶来自 ① 唾液腺② 胃腺③ 肝脏④ 肠腺⑤ 胰腺 A.①

题型:选择题

问题:

对淀粉有消化作用的消化酶来自

① 唾液腺  ② 胃腺  ③ 肝脏  ④ 肠腺   ⑤ 胰腺

A.①②③

B.②④⑤

C.①④⑤

D.①③⑤

考点:消化和吸收消化系统的组成和功能
题型:选择题

Dubin-Johnson综合征()。

A.肝细胞对结合胆红素及其他有机阴离子毛细胆管排泄障碍多

B.肝细胞摄取游离胆红素和排泄结合胆红素均有先天性缺陷多

C.胆红素生成过多

D.肝细胞摄取游离胆红素障碍及线粒体内葡萄糖醛酸转移酶不足

E.肝细胞缺乏葡萄糖醛酸转移酶致游离胆红素不能形成结合胆红素

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已知电解(石墨电极)盐酸、硫酸混合酸时两极生成的气体与时间关系如图所示。则其电解过程中溶液pH随时间变化关系的正确图形是下列的

[ ]

A.

B.

C.

D.

题型:选择题

下列工程的防水等级属于二级的是()。

A.电缆隧道 

B.水下隧道 

C.一般公路隧道 

D.城市公路隧道 

E.地道运行区间隧道

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关于保险产品风险的含义,下列说法正确的是( )。

A.投保人和保险人事先约定的保险金额的不确定性
B.保险费与保险人赔偿数额的事后估定之间的不对称性
C.投保人和保险人事先约定的保险价值与保险人赔偿数额的事后估定之间的不对称性
D.投保人事先支付的保费与保险人赔偿的保险金额的事后估定之间的不对称性

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