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【单选题】
β-内酰胺抗生素的内源性过敏源是A.
生物合成中引入的蛋白质，多肽类
B.
生物合成中引入的多糖类
C.
β-内酰胺环水解开环后的产物
D.
酰胺侧链水解后的产物
E.
开环，自身聚合后的高分子聚合物
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【简答题】对于真实、合法、合理但内容不够完善、填写有错误的原始凭证，会计机构和会计人员可以接受并办理相应的会计手续。( )
【简答题】Miss Evans was going to give a lecture (讲座) on Friday afternoon. But on Thursday night she was told that she had to go to an important meeting the next day at the same time. “No one can be in two plac...
【简答题】From a very early age, perhaps the age of five or six, I knew that when I grew I should be a writer. Between the ages of about seen and 【1】______ twenty-four I tried to abandon this idea, but I d...
【简答题】My mother tells me that I__________(can/could)go to bed as late as I want. 2.As soon as she opened the door I_________(can/could)see something terrible had happened. 3. It was dificult to understand w...
【单选题】公关人员是组织的宣传员，要善于周密策划、精心设计组织形象，善于运用（ ）展现组织形象，宣传推广组织形象。
A.
名人
B.
个人关系
C.
公众形象
D.
名人各种传播方式
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