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【简答题】
TTL 与非门的关门电平为 0.8V ,开门电平为 2V ,当其输入低电平为 0.3V ,高电平为 3.4V 时,其输入低电平噪声容限 U NL = ;输入高电平噪声容限为 U NH = 。
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【单选题】抗菌药物在外科疾病应用中，下列哪项叙述是错误的
A.
抗菌药物应用可减少术后并发症，增加手术安全性
B.
严重创伤，大面积烧伤应预防性应用抗菌药物
C.
全身情况不良的患者，应尽量选择杀菌性的抗生素治疗感染
D.
严重感染者，在体温正常、全身情况和局部感染灶好转后3～4天即可停药，不需使用更长时间
【单选题】对烧伤全身性感染的防治,下列哪项是错误的
A.
及时积极地纠正休克
B.
正确处理创面
C.
平时应反复作细菌培养加药敏
D.
营养的支持，水电解质紊乱的纠正
E.
待患者体温完全正常后停用抗生素
【简答题】用方框中所给单词的适当形式填空。 nine friend tourist easy beat 1. Our neighbors are always _________ to us. 2. You can find the Capital Stadium on the map _________. 3. Today is Tony's _________ birth...
【简答题】用下列单词的适当形式填空。 strike, beat, hit 1. The criminal gang _____ the man so severely that he almost died. 2. I left immediately after the clock _____ twelve. 3. _____ while the iron is hot. 4. What _____ me...
【判断题】How others perceive you not how you perceive others determins who you are.
A.
正确
B.
错误
【单选题】听力原文：W：I don't think you can build your model in less than a week，with your limited experiences． M：Catherine made hers in three days．Why can't I，say，build mine in five days or six days? Q：What does th...
A.
She built a model a week ago.
B.
She completed her model quickly.
C.
She helped him on Thursday.
D.
She thought she could reduce the size.
【简答题】How do you answer a younger person you know who greets you with “ how are you? ”
【简答题】How do you understand Houssaye’s remark “tell me whom you love, and I will tell you who you are”?
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