Siberian Tigers ________ and killed at such a speed that they will disappear from the earth in the near future.

A．hunted

B．are hunted

C．are being hunted

D．had been hunted

发生溶血性输血反应时，检验值降低的是（）。

A.血浆游离血红蛋白

B.血清总胆红素

C.非结合胆红素

D.血浆结合珠蛋白

E.黄疸指数