以下哪项不是导致便秘的常见原因（）
A.胃火
B.肝胃不和
C.阴血不足
D.寒凝胃肠
E.津液亏虚
参考答案：B
—Well, Toby. I remember that you had a very…how should I say…relaxed attitude toward work at the bookstore.
—__________! I was a model worker!
A．No way
B．No doubt
C．No wonder
D．No problem
马腹腔手术最理想的麻醉深度是（）。
A.第Ⅰ期
B.第Ⅱ期
C.第Ⅲ期2级
D.第Ⅲ期3级
E.第Ⅲ期4级
