问题
多项选择题
新生儿生理性黄疸的主要原因（）
A.胆红素生成过多
B.Y、Z蛋白不足
C.肝酶系统发育不完善
D.肠内β葡萄糖醛酸苷酶活性较高
E.血清白蛋白含量低
答案
参考答案：A, B, C, D, E
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新生儿生理性黄疸的主要原因（）
A.胆红素生成过多
B.Y、Z蛋白不足
C.肝酶系统发育不完善
D.肠内β葡萄糖醛酸苷酶活性较高
E.血清白蛋白含量低
参考答案：A, B, C, D, E
It was the first day of biology class. The teacher wanted to give a good 41 to his class. He wanted to 42 his students’ eyes to the world of biology. He knew that 43 young students was not easy, so he worked 44 and tried to find a good way to teach this class. 45 thinking for a long time, he made a 46 at last. He decided to show the kids something 47 and teach them a lesson at the same time. He asked his students to 48 carefully. Then he began. He put a worm(虫子) into a glass of water. The worm 49 around in the water. Then he put a second worm into a glass full of alcohol(酒精). It died at once. He asked the students if anyone knew about 50 they learned from it. A boy said, “You showed us that if we drink alcohol we won’t have worms.”
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