第16题: [单项选择]胆红素在肝细胞内的存在形式是 A. 硫酸胆红素 B. 胆红素-清蛋白 C. 胆红素-载体蛋白 D. 胆素原族 参考答案:C 答案解析:[考点] 胆红素代谢的各阶段及形式 [解析] 胆红素不溶于水,在血中转运是和清蛋白结合成复合物转运至肝的。胆红素进入肝细胞后与载体蛋白结合运至内质网,在UDP-葡萄糖醛酸基转移酶的作用下,生
A. To have a good rest. B. To burn fire to keep themselves warm. C. To get rid of the plane and all its human cargo as soon as possible. D. To end the hijack. 参考答案:C 答案解析:[听力原文]25-26 At Kandahar Airport, paramedics stand by to handle injuries and tents have been p