白细胞减少症为外周血白细胞计数持续低于（）

A.8.0×10⁹/L

B.4.0×10⁹/L

C.8.0×10¹⁰/L

D.2.0×10⁹/L

E.2.0×10¹⁰/L

He was facing charges on forgery in a court of law but he hired a good attorney to

A．get off

B．get through

C．get by

D．get away