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【单选题】
下列哪个抗菌药物与青霉素、头孢菌素无交叉过敏反应( )
【单选题】
青霉素类药物的抗菌活性必需基团是()。
【单选题】
对于青霉素类及头孢菌素类过敏的人群,可选择的主流抗菌药物品种为()
【单选题】
时间依赖性抗菌药如青霉素类、头孢菌素类和其他β-内酰胺类、红霉素、克林霉素等,应( )给药
【单选题】
Their happiness was very _____.
【单选题】
This house will probably come on the _____next month.
【单选题】
The sight of the fruit salad made our daughter Kit’s mouth _____.
【单选题】
The old lady _____and fell from the top of the stairs to the bottom.
【单选题】
She put an extra blanket over the baby for fear that _____.
【单选题】
_____ that it was going to rain, he took a raincoat with him.
【单选题】
The disappearance of her paper has never been _____.
【单选题】
The boy has admitted to _____the window while playing football yesterday.
【单选题】
The millions of circulations involved, _____ by hand, would have lost all practical value by the time they were finished.
【多选题】
矛盾同一性在事物发展中的作用表现是什么?