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【多选题】
利的教育著作有A.
有吸收力的心理
B.
童年的秘密
C.
利方法
D.
利儿童教育手册
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反馈参考答案：
举一反三
【简答题】七、 3. 您可从继电器-K1的数据页中找出继电器线圈的电阻为995Ω,启动电压为14 V。 请您通过计算检查,在温度δ=20°C时,信号灯-P1是否能亮。
【单选题】What benefits can one gain from the gap year experience?
A.
They would acquire some additional credits.
B.
They would be better prepared for entering college.
C.
They would no longer be afraid of the academic treadmill.
D.
They would be more active in extra-curriculum activities.
【简答题】What benefits can
you get from reading more books?A. Become a better parent or friend. B. Earn more money. C. See the world from a new perspective. D. Find a beautiful girlfriend or a handsome boyfrie...
【简答题】在使用电阻制动时，系统没有初制动作用的原因之一可能是中间继电器452线圈电路中的（）不良造成的。
【单选题】What tools can be used by governmental decision makers to analyze the government spending?
A.
Expenditure analysis
B.
Costs and benefits
C.
Equilibrium and analysis
D.
Both A and B
【简答题】有力的,有生气的,活跃的。
【多选题】What benefits to China can be achieved by exploring space?
A.
Many technical spin-offs of materials and technology.
B.
Encouraging breakthroughs.
C.
Keeping up with space technology in case of the use of weapons in space
D.
Solving the lacking of natural resources.
【简答题】有生气的,活跃的
【单选题】某电磁继电器的触点系统在纯电阻负载时的额定电流是5A，为了保证触点能够正常工作，则该继电器可用来控制：（）
A.
5A的白炽灯照明电路
B.
5A的加温电路
C.
5A的电动机电源电路
D.
5A的线圈电路
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