In the USA and France, people shake hands when meet each other indinning room in the morning.
A. 对
B. 错
In the Middle East,Arabs greet each other by saying "hello".
A. 对
B. 错
小肠内乳化食物脂肪的物质主要来自( )
A. 胃
B. 肝脏
C. 小肠
D. 胰腺
E. 十二指肠
胆汁分泌障碍时,下列酶消化作用减弱的是( )
A. 肠激酶
B. 糜蛋白酶
C. 胰蛋白酶
D. 胰淀粉酶
E. 胰脂肪酶