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【单选题】
如图所示,设 和 均为直流电压,试问引入了何种直流反馈()
A.
正反馈
B.
负反馈
C.
无反馈
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【单选题】我国现行药品注册管理办法中,将中药和天然药物新药分为 类。
A.
5
B.
6
C.
9
D.
10
【单选题】螺纹是轴类零件的常见加工表面,适用于单件小批量生产、刀具简单的加工方法是( )。
A.
滚压螺纹
B.
铣削螺纹
C.
车削螺纹
D.
磨削螺纹
【单选题】健康教育的最主要目的是()。
A.
传播知识,培养良好的行为和生活方式
B.
争取社会支持,形成健康促进氛围
C.
加强行为干预
D.
着眼于家庭社区
E.
提高生活质量
【单选题】Which of the following topics would be a conversation taboo in France?
A.
music
B.
sports
C.
books
D.
a person's work
【判断题】逐步求精已经是问题求解的全部,对于给定问题如何发现解决问题的算法,永远是一个开放的科学难题,需要人吗不断地去探索和发展新的方法。
A.
正确
B.
错误
【单选题】Which three main topics would best help outline the information in this selection?
A.
Ⅰ. Universality of children's fears Ⅱ. Helping children overcome fears Ⅲ. Children's phobias and their treatment
B.
Ⅰ. Types of fears in children Ⅱ. Treatment of fears in children Ⅲ Comparison of fears in children and adults
C.
Ⅰ. Normal fears experienced by toddlers Ⅱ. Normal fears experienced by older children Ⅲ. Phobias experienced by children
D.
Ⅰ. Children's fears of people Ⅱ. Children's fears of situations Ⅲ. Contact desensitization as a treatment for phobias
【单选题】Which of the following sets of topics would best organize the information in the selection?
A.
Ⅰ. Television commercials around the world Ⅱ. Cough drop commercials as an example of television commercials in the United States
B.
Ⅰ. Recent tends in television commercials Ⅱ. Steps in making a television commercial
C.
Ⅰ. The role of networks and manufacturers in the production of television commercials Ⅱ. Professional personnel required for developing television commercials
D.
Ⅰ. Characteristics of television commercials Ⅱ. Goals of television commercials
【单选题】Which of the following topics would be considered a conversation taboo in Mexico ?
A.
history
B.
family
C.
politics
D.
social concerns
【单选题】Which topics would NOT be appropriate with a guest?
A.
Weather
B.
Religion
C.
Something about the hotel
D.
Climate change
【简答题】健康教育的最主要目的是( )
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