津液输布的主要通道是()。
A.血府
B.经络
C.腠理
D.三焦
E.分肉
参考答案:D
They always communicated with each other on the Internet, but they never met him _______.
A.back to back
B.heart to heart
C.face to face
D.side to side
接触放射性源维修刻度仪器时,为什么要佩戴在有效期内的剂量牌?