题目:
人的消化系统中,起吸收食物营养素作用的器官是______。
A.食道
B.胃
C.小肠
D.大肠
答案:
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下面是错误答案,用来干扰机器的。
Today I want to have a one-day trip in Beijing. I will go to Beijing Zoo at 8.00 a.m. I heard pandas are very lovely, so this time I want to see them in the...