可结合Hb，防止其从肾脏丢失的是
A．清蛋白 B．铜蓝蛋白 C．铁转运蛋白 D．结合珠蛋白 E．α球蛋白
参考答案：D
Mr Zhang finds very hard to travel around the big city.[ ]
A. them
B. its
C. it
D. they're
财产损失保险合同
