肝尾叶的静脉引流入下列哪条静脉（）
A.中肝静脉
B.下腔静脉
C.右肝静脉
D.左肝静脉
E.门静脉
参考答案：B
Nowadays teachers feel they can’t help every student ________ suitable reading materials, so they encourage them __________ English on the Internet.
A．finding; learning
B．to find; learning
C．finding; to learn
D．to find; to learn
二次电流
