串行通信中,若收发双方的动作由同一个时序信号控制,则称为( )串行通信。
A.同步
B.异步
C.全双工
D.半双工
参考答案:A
—Would you mind if I turned off the air conditioner?
—______. It makes no difference to me.
A.Never mind
B.Not at all
C.Sure, go ahead
D.Why not?
治疗金黄色葡萄球菌引起的骨髓炎应选用______。
A.红霉素B.链霉素C.林可霉素D.头孢唑林E.多粘菌素E