女性患者，面色晦暗，双颊紫红，口唇轻度发绀，这是（）。
A.病危面容
B.肝病面容
C.肾病面容
D.二尖瓣面容
E.慢性面容
参考答案：D
Jim _____ the army in 2003. He ____ soldier for 3 years.[ ]
A. has been; joined
B. joined; has been
C. joined; joined
D. has been; has been
多重介质
