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【单选题】
若烷烃分子中C-C键能为345.6kJ/mol,则烯烃分子中烯键C=C的键能( )kJ/mol。A.
等于2×345.6 ;
B.
大于2×345.6 ;
C.
小于345.6 ;
D.
小于2×345.6
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皮皮学刷刷变学霸
举一反三
【单选题】Tian Dong, together with his classmates, _________ because of _________ the school rules.
A.
was punished; obeying
B.
were punished; breaking
C.
were punished; obeying
D.
was punished; breaking
【多选题】多选题 窗体顶端 题目: 货物运输车辆运行作业计划编制的原则主要有( )。 选项:
A.
唯利是图原则
B.
急救物资优先原则
C.
兼顾平衡原则
D.
运力运量匹配原则
E.
经济效益原则
【单选题】Tian Dong together with his classmates, _______because of _______________the school rules.
A.
was punished, breaking
B.
were punished , breaking
C.
was punished, obeying
D.
were punished, obeying
【单选题】Tian Dong, together with his classmates, _______ because of ______ the school rule.
A.
was punished; obeying
B.
were punished; breaking
C.
were published; obeying
D.
was punished; breaking
相关题目：
【多选题】多选题 窗体顶端 题目: 货物运输车辆运行作业计划编制的原则主要有( )。 选项:
A.
唯利是图原则
B.
急救物资优先原则
C.
兼顾平衡原则
D.
运力运量匹配原则
E.
经济效益原则