十二经脉中阴经与阳经的交接部位在（）。
A.头面
B.腹
C.四肢末端
D.颈
E.胸
参考答案：C
现在农村中人才、资本和土地是净流入。
．China is playing an important role in the world. That’s_______Laura has come to study Chinese.
A．because
B．why
C．how
D．that
