温经汤证出现"唇口干燥"的机制是（）
A.水饮内停，津不上承
B.脾失运化，清气不升
C.瘀血内阻，津不上润
D.肾气不足，气不化津
参考答案：C
发生协调性子宫收缩乏力时的一般处理不包括
A．补充能量B．排空膀胱C．预防感染D．静椎地西泮E．纠正酸中毒
Joe Savvy wishes to speculate in March wheat futures by selling one contract Prior to selling the one contract, Joe had no position in wheat futures at all. He sells to Billy Bland who already had a short position in the March wheat futures contract. His sale of one futures contract will produce :()
A. one contract of volume.
B. one contract of open interest.
C. both A and B.
