非抗原特异性循环免疫复合物的检测技术有()

A．理化检测技术

B．补体参与技术

C．抗球蛋白检测技术

D．细胞技术

E．以上均是

In order to find ____ better job, Tom made up his mind to learn ____ second foreign language.

A．the; a

B．a; a

C．the; the

D．a; the