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【单选题】
实例分析: 在认识浮力的教学中,需要通过演示实验,首先根据生活经验猜想出浮力大小跟哪些因素(物体浸入液体的体积大小、液体的密度、物体浸入液体的深度)有关,再采用控制变量法,分别探索出浮力的大小与物体浸入液体的体积大小的关系、浮力的大小与液体的密度的关系以及浮力的大小与物体浸入液体的深度的关系,最后归纳总结影响浮力大小的因素。 以上实例分析符合演示技能的启发思维哪个方面的内容?
A.
明确演示中的思维方法
B.
提出思维任务，进行必要的指引
C.
巩固观察结果，总结实验方法
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【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people'. In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously
B.
focus on training students in various skills
C.
encourage students to take as many courses as possible
D.
make learning serve academic rather than productive ends
查看完整题目与答案
【多选题】操作变量的选择时应该遵循一定的原则,下列说法正确的是( )
A.
操作变量在工艺上是允许调节的、可以控制的变量
B.
要考虑工艺上的合理性,生产上的经济性
C.
操作变量的作用比其它干扰对被控变量的影响更加灵敏
D.
干扰通道的放大系数尽可能小些,时间常数尽可能大些
查看完整题目与答案
【单选题】操作变量的选择原则为
A.
使控制通道的Ko大
B.
使控制通道的T大
C.
使控制通道的τ大
D.
使控制通道的Ko小
查看完整题目与答案
【简答题】试述操作变量的选择原则。
查看完整题目与答案
【多选题】操作变量选择的原则
A.
负荷可以作为操作变量
B.
生产过程中的主物料流量可以作为操作变量
C.
生产过程中对被控变量有所影响的变量都可以作为操作变量
D.
操作变量应是可控的。
E.
操作变量应具有较高的灵敏度
查看完整题目与答案
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people.' In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously.
B.
focus on training students in various skills.
C.
encourage students to take as many courses as possible.
D.
make learning serve academic rather than productive ends.
查看完整题目与答案
【判断题】广义信息系统是指以对信息进行收集、整理、转换、存储、传输、加工和利用为主要目的和特征的客观系统。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people'. In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously
B.
focus on training students in various skills
C.
encourage all sorts of people to attend college
D.
make learning serve academic rather than productive ends
查看完整题目与答案
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people'. In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously
B.
focus on training students in various skills
C.
encourage students to take as many courses as possible
D.
make learning serve academic rather than productive ends
查看完整题目与答案
【单选题】患者女,反复发作右上腹绞痛3个月,并向右肩部放射。右上腹轻度压痛,肝不大,未扪及包块。首选的检查是
A.
胃镜检查
B.
肝功能检查
C.
静脉胆道造影
D.
口服胆囊造影
E.
B超
查看完整题目与答案
相关题目：
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people'. In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously
B.
focus on training students in various skills
C.
encourage students to take as many courses as possible
D.
make learning serve academic rather than productive ends
查看完整题目与答案
【多选题】操作变量的选择时应该遵循一定的原则,下列说法正确的是( )
A.
操作变量在工艺上是允许调节的、可以控制的变量
B.
要考虑工艺上的合理性,生产上的经济性
C.
操作变量的作用比其它干扰对被控变量的影响更加灵敏
D.
干扰通道的放大系数尽可能小些,时间常数尽可能大些
查看完整题目与答案
【单选题】操作变量的选择原则为
A.
使控制通道的Ko大
B.
使控制通道的T大
C.
使控制通道的τ大
D.
使控制通道的Ko小
查看完整题目与答案
【简答题】试述操作变量的选择原则。
查看完整题目与答案
【多选题】操作变量选择的原则
A.
负荷可以作为操作变量
B.
生产过程中的主物料流量可以作为操作变量
C.
生产过程中对被控变量有所影响的变量都可以作为操作变量
D.
操作变量应是可控的。
E.
操作变量应具有较高的灵敏度
查看完整题目与答案
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people.' In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously.
B.
focus on training students in various skills.
C.
encourage students to take as many courses as possible.
D.
make learning serve academic rather than productive ends.
查看完整题目与答案
【判断题】广义信息系统是指以对信息进行收集、整理、转换、存储、传输、加工和利用为主要目的和特征的客观系统。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people'. In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously
B.
focus on training students in various skills
C.
encourage all sorts of people to attend college
D.
make learning serve academic rather than productive ends
查看完整题目与答案
【单选题】The Carnegie Foundation report says that many colleges have tried to be 'all things to all people'. In doing so, they have increasingly catered to a narrow-minded careerism while failing to cultivate ...
A.
satisfy the needs of all kinds of students simultaneously
B.
focus on training students in various skills
C.
encourage students to take as many courses as possible
D.
make learning serve academic rather than productive ends
查看完整题目与答案
【单选题】患者女,反复发作右上腹绞痛3个月,并向右肩部放射。右上腹轻度压痛,肝不大,未扪及包块。首选的检查是
A.
胃镜检查
B.
肝功能检查
C.
静脉胆道造影
D.
口服胆囊造影
E.
B超
查看完整题目与答案