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【多选题】
下列各项属于青少年的发展性特征的有( )。
A.
兼具质与量的改变
B.
兼具连续性与间断性的特质
C.
兼具稳定性与不稳定性的状态
D.
兼具不成熟和成熟的状态
E.
兼具分化与统整的功能
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【单选题】在电动势为3V的电路中,用3个相同电阻组成先并联后串联电路,要想得到2A的总电流强度,单个电阻的阻值应为()Ω。
A.
1
B.
2
C.
3
D.
4
【单选题】What is the main idea of the text?
A.
Recycling of electronic items is a 'success story'.
B.
Environmentalists are opposed to recycling electronics.
C.
Recycling can not keep pace with electronics sales.
D.
It is unnecessary to recycle electronics.
【单选题】What is the main theme of the passage?
A.
Having a goal is vital to success.
B.
Being good is different from being great.
C.
One cannot succeed without time and practice.
D.
Luck,talent and family help to achieve success.
【判断题】变压器等效电路的串联和并联表示的激磁回路中,激磁电阻和铁耗电阻值相同。
A.
正确
B.
错误
【单选题】网络协议的要素为( )。
A.
数据格式、编码、信号 电平
B.
数据格式、控制信息、速度匹配
C.
语法、语义、同步
D.
编码、控制信息、同步
【单选题】在由三个相同阻值的电阻组成的先串联后并联的电路中,串联支路的电流比另一个支路的电流()。
A.
B.
C.
相等
D.
无法判断
【简答题】One of my main concerns when I am helping people achieve their goals is how they measure success. I see individuals getting frustrated as they struggle hard for success. One of the main reasons that c...
【单选题】网络协议的要素为( )。
A.
数据格式、编码、信号电平
B.
数据格式、控制信息、速度匹配
C.
语法、语义、时序
D.
编码、控制信息、同步
【单选题】They all said that his high talent was the main factor of his success. But he ______ it to hard work.
A.
distributed
B.
contributed
C.
attributed
D.
benefited
【多选题】网络协议的要素分为( )。
A.
语法
B.
语义
C.
时序(定时)
D.
实体
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