—What do you think of your host family, Jim?

—Great. They try ________ best to make me feel at home.

A．they

B．their

C．them

D．theirs

患儿出生24小时，体重3200g，血清总胆红素307.8μmol/L(18mg/dl)，未结合胆红素156.5μmol/L(15mg/dl)，首选治疗方案是

A．光疗

B．补充白蛋白

C．口服鲁米那

D．换血

E．输鲜血