皮皮学，免费搜题
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【单选题】
回差电压是（ ）电路的主要特性参数。A.
时序逻辑
B.
施密特触发器
C.
单稳态触发器
D.
多谐振荡器
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】A．John was disappointed at his math score. B．John did better than he thought he was able to. C．John didn't pass, although he had tried his best. D．John got an excellent score, which was unexpected.
【单选题】下面选择中G + 和 G - 细菌的细胞壁主要区别在于( )。
A.
G + 有鞭毛 , G - 无鞭毛
B.
G + 有肽聚糖 , G - 无肽聚糖
C.
G + 有荚膜 , G - 无荚膜
D.
G + 有磷壁酸 , G - 无磷壁酸
【简答题】A．John was disappointed at his math score. B．John did better than he thought he was able to. C．John didn't pass, although he had tried his best. D．John got an excellent score, which was unexpected.
【单选题】________ a teacher, John thinks that his main duty is to help the students to become better learners. [ ]
A.
As
B.
By
C.
About
【多选题】新时代的爱国主义主要体现在下列哪些方面?( )
A.
坚持爱国主义和社会主义相统一。
B.
维护祖国统一和民族团结。
C.
尊重和传承中华民族历史和文化。
D.
必须坚持立足民族又面向世界。
【简答题】从会计凭证的取得或填制时起至归档保管过程中,在单位内部有关部门和人员之间的传送程序,属于 A. 会计凭证的填制 B. 会计凭证的审核 C. 会计凭证的传递 D. 会计凭证的保管
相关题目：
【多选题】新时代的爱国主义主要体现在下列哪些方面?( )
A.
坚持爱国主义和社会主义相统一。
B.
维护祖国统一和民族团结。
C.
尊重和传承中华民族历史和文化。
D.
必须坚持立足民族又面向世界。