用户申请ISDN业务后如是(2B+D)的,月租费是市话月租费的1.5倍。
参考答案:对
The belief is generally held_____communicative skill is a must nowadays in hunting for a job.
A.what
B.that
C.which
D.as
抑制移位酶:
A.红霉素
B.万古霉素
C.林可霉素
D.头孢唑林
E.庆大霉素