小细胞肺癌首选手术治疗。
参考答案：错
I am going to the airport to meet my uncle tomorrow morning, _____ he will be back from abroad.
A．who
B．when
C．where
D．which
日常生活中既价廉，营养价值又高的蛋白质来源是（ ）
A．牛肉
B．蔬菜
C．鸡蛋
D．米饭
