胞内胆红素的主要存在形式是()
A.胆红素-白蛋白
B.胆红素葡萄糖醛酸酯
C.胆红素-Y蛋白
D.胆素原
E.胆红素-阴离子
参考答案:C
After we walked ______ the forest, and ______ a river, we arrived at that small village.
A.across; across
B.through; across
C.across; through
D.through; through
二、数学运算:共10题。你可以在草稿纸上运算,遇到难题,可以跳过暂时不做,待你有时间再返回解决它。
A.1
B.16/49
C.0
D.-1