起于大指之端，夹咽，连舌本，散舌下的经脉是（）
A.手少阴心经
B.足厥阴肝经
C.足太阴脾经
D.足少阴肾经
E.手厥阴心包经
参考答案：C
—I don't know why Denise started crying when I mentioned the wedding.
—It ______ what you said about her brother. Or, perhaps she is just nervous. [ ]
A. should have been
B. couldn't have been
C. could have been
D. must have been
在混悬剂中起润湿、助悬、絮凝或反絮凝作用的附加剂是( )。
A．润湿剂B．反絮凝剂C．絮凝剂D．助悬剂E．稳定剂
