去圣寖远,其学难精。(寖)
参考答案:
寖:逐渐。
男性,68岁。双下肢发绀,皮温低,给予按摩使皮肤转暖,发绀消退。该患者的发绀可能由于()
A.气胸
B.肺炎
C.胸腔积液
D.Fallot四联症
E.右心衰竭
单项选择。
In the tree many birds. [ ]
A. have
B. has
C. there are
D. there is