具有调节阴经气血，为“阴脉之海”的经脉是( )
A．冲脉B．督脉C．带脉D．任脉
参考答案：D
I need a pair of new shoes _______ my shoes are ________. [ ]
A. because, good
B. but, old
C. and, new
D. because, broken
