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【单选题】
卤代烷进行亲核取代反应,下列现象一定属于SN1历程的是 ( )
A.
伯 卤代烷速度大于 叔 卤代烷
B.
产物的构型完全翻转
C.
有重排产物
D.
反应 一 步完成
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参考答案：
举一反三
【单选题】小儿所特有的机体对能量的需要为
A.
基础代谢所需
B.
活动所需
C.
排泄损失能量
D.
生长发育所需
E.
食物的特殊动力作用
查看完整题目与答案
【单选题】患者,女,38 岁。身体评估发现心尖搏动位于左侧第 6 肋间锁骨中线外 3 厘米处,呈抬举感,提示( )
A.
左心室扩大
B.
右心室肥大
C.
心包积液
D.
左心房扩大
E.
左心室肥大
查看完整题目与答案
【单选题】I believe he ______an accident, otherwise he would have arrived on time.
A.
would have had
B.
could have had
C.
should have had
D.
must have had
查看完整题目与答案
【多选题】依据我国民商合一的立法模式,下列法律中属于民法商法的有( )。
A.
《合同法》
B.
《物权法》
C.
《民法通则 》
D.
《政府采购法》
E.
《侵权责任法》
查看完整题目与答案
【单选题】Task 7 The Museum of Contemporary ( 当代的 ) Art (MOCA) has started a new series ofprograms, known as “Art Makes Good Business”. It is designed to educate company managers about why art makes good busine...
A.
the management of business by artists
B.
the role of art in improving business
C.
the education of modern artists
D.
the way to design art programs
查看完整题目与答案
【单选题】Passage 2The Museum of Contemporary(当代的) Art (MOCA. has started a new series of programs, known as "Art Makes Good Business." It is designed to educate company managers about why art makes good busine...
A.
the management of bussiness by artists
B.
the role of art in improving business
C.
the education of modern
D.
the way to design art programs
查看完整题目与答案
【判断题】金融服务礼仪的特征是实践性。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】改变三相异步电动机旋转磁场方向的方法是（）
A.
改变电源频率
B.
改变电源电压
C.
改变定子绕组中电流的相序
D.
改变电机的工作方式
查看完整题目与答案
【判断题】美术学院的建立与拉斐尔有关
A.
正确
B.
错误
查看完整题目与答案
【判断题】最大极限尺寸一定大于基本尺寸
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】小儿所特有的机体对能量的需要为
A.
基础代谢所需
B.
活动所需
C.
排泄损失能量
D.
生长发育所需
E.
食物的特殊动力作用
查看完整题目与答案
【单选题】患者,女,38 岁。身体评估发现心尖搏动位于左侧第 6 肋间锁骨中线外 3 厘米处,呈抬举感,提示( )
A.
左心室扩大
B.
右心室肥大
C.
心包积液
D.
左心房扩大
E.
左心室肥大
查看完整题目与答案
【单选题】I believe he ______an accident, otherwise he would have arrived on time.
A.
would have had
B.
could have had
C.
should have had
D.
must have had
查看完整题目与答案
【多选题】依据我国民商合一的立法模式,下列法律中属于民法商法的有( )。
A.
《合同法》
B.
《物权法》
C.
《民法通则 》
D.
《政府采购法》
E.
《侵权责任法》
查看完整题目与答案
【单选题】Task 7 The Museum of Contemporary ( 当代的 ) Art (MOCA) has started a new series ofprograms, known as “Art Makes Good Business”. It is designed to educate company managers about why art makes good busine...
A.
the management of business by artists
B.
the role of art in improving business
C.
the education of modern artists
D.
the way to design art programs
查看完整题目与答案
【单选题】Passage 2The Museum of Contemporary(当代的) Art (MOCA. has started a new series of programs, known as "Art Makes Good Business." It is designed to educate company managers about why art makes good busine...
A.
the management of bussiness by artists
B.
the role of art in improving business
C.
the education of modern
D.
the way to design art programs
查看完整题目与答案
【判断题】金融服务礼仪的特征是实践性。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】改变三相异步电动机旋转磁场方向的方法是（）
A.
改变电源频率
B.
改变电源电压
C.
改变定子绕组中电流的相序
D.
改变电机的工作方式
查看完整题目与答案
【判断题】美术学院的建立与拉斐尔有关
A.
正确
B.
错误
查看完整题目与答案
【判断题】最大极限尺寸一定大于基本尺寸
A.
正确
B.
错误
查看完整题目与答案
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