乳痈的形成,主要原因是()。
A.邪壅经络,郁闭不通
B.营卫不和,火毒内生
C.气血两虚,邪毒内陷
D.肝气郁结,胃热壅滞
E.以上都不是
参考答案:D
The factory was built in a secret place, around ______ high mountains.
A.which was
B.it was
C.which were
D.them were
在Visual FoxPro环境下,进行下列操作,打开的数据库文件是 [3] 。 Y1=”3” Y2=”RSDA”+Y1 USE&Y2