肺脓肿患者,如果是脆弱类厌氧菌感染为主,对青霉素不敏感,可选用()
A.苯甲异恶唑青毒
B.庆大霉素
C.病毒
D.灭滴灵(甲硝唑)
E.中草药
参考答案:D
补全短文,一空一词。
Jeff : Hello, Jack !
Jack: Hello, Jeff!
Jeff: Where 1___ you last month?
Jack: Guess!
Jeff: I've no idea.
Jack: Well, I 2___ in Paris first, then in Sydney, 3___.
Jeff: Sydney! Oh, you’re really lucky (幸运).
Jack: What 4___ you? 5___ were you?
Jeff: Me! I was 6___ this office 7___ the time last month. I was here yesterday. I 8___ here today.
And I'm going to be here tomorrow.
流动血液的信号与哪项无关()
A.流动方向
B.流动速度
C.流动血液黏稠度
D.湍流
E.层流