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听力原文: The young man was a French nobleman, the son of one of the richest and most important families of France. He had heard about the revolution taking place in America. He wanted to go and help. He was only eighteen years old. He was tall, handsome, and a familiar figure in the high society of Paris. His family tried to stop him. They asked the King of France to throw him into jail in order to stop him. But the young nobleman had already bought his ship and gathered some young friends to go with him. He escaped and came to America. The young man was the Marquis de Lafayette. Upon his arrival, he discovered that no one knew him here. He had been promised that he would be an officer in the American army, but Congress said that it wanted no more foreign officers. Lafayette sat down and cried. He could not go back to France. Instead, he offered to serve as a volunteer— without pay. Congress accepted. Later Lafayette met Washington. A great affection grew up between the two men, as between father and son. Lafayette became Washington's personal aide. Once toward the end of the war, the men under Lafayette's command were all in rags. Lafayette asked Congress for new uniforms. Congress had no money with which to buy uniforms. Using his own personal credit, Lafayette went to the merchants of Baltimore and, at his own expense, bought a new uniform. for each man —two thousand in all. In this way, his men were able to go on fighting. (23)
A.
He wanted to fight against the Americans.
B.
He wanted to visit George Washington.
C.
He wanted to do business with the Americans.
D.
He wanted to help the American Revolution.
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【单选题】耗尽型 MOSFET 与增强型 MOSFET 的区别是 ( ) 。
A.
耗尽型MOSFET在未施加栅源电压时就已经产生了耗尽层,而增强型则不然
B.
耗尽型MOSFET缺少某种载流子,而增强型MOSFET则增加了某种载流子的数量
C.
都叫MOSFET,但制造工艺完全不同
【多选题】履带式起重机的主要技术性能参数有( )。
A.
起重量Q
B.
起重半径
C.
起重高度H
D.
起重臂长度L
E.
起重臂仰角口
【单选题】MOSFET 的输出 特性分为:
A.
MOSFET的输出特性分三个区:截止区、放大区和非饱和区。
B.
MOSFET的输出特性分三个区:截止区、放大区和饱和区。
C.
MOSFET的输出特性分三个区:截止区、非饱和区(可变电阻区)和饱和区。
D.
只有放大区和饱和区
【单选题】履带式起重机主要技术性能包括的三个主要参数为( )。
A.
起重量、起重高度、起升速度
B.
起重高度、回转半径、爬坡能力
C.
起重量、回转半径、行走速度
D.
起重量、起重高度、回转半径
【简答题】材料一:“一分钟”[义务教育课程标准实验教科书(人教版)小学语文二年级上册第31—33页] 材料二:“认识钟表”[义务教育课程标准实验教科书(人教版)小学数学一年级上册第91—95页] 材料三:“站立起来的中国人”[义务教育课程标准实验教科书(人教版)小学品德与社会六年级上册第58—63页] 请在上述材料中任选其一,就课堂教学目标及某一教学环节(譬如课堂导入、讲授新知等)进行教学设计。
【单选题】MOSFET 的输出 特性分为:
A.
MOSFET的输出特性分三个区:截止区、放大区和非饱和区。
B.
MOSFET的输出特性分三个区:截止区、放大区和饱和区。
C.
MOSFET的输出特性分三个区:截止区、非饱和区和饱和区。
【单选题】MOSFET的输出特性分为:
A.
MOSFET 输出特性分三个区:截止区、放大区和非饱和区。
B.
MOSFET 输出特性分三个区:截止区、放大区和饱和区。
C.
MOSFET 的输出特性分三个区:截止区、非饱和区和饱和区。
D.
MOSFET 的输出特性分为三个区:截止区、非饱和区以及放大区。
【单选题】1945 年8月,毛泽东指出:"抗日战争阶段过去了,新的情况和任务是国内斗争。"这一斗争主要集中在
A.
建立什么性质的国家
B.
争取和平反对内战
C.
是否继续维持统一战线
D.
是否召开国民大会
【判断题】刀具进给是根据偏差判别情况确定朝哪个方向进给。
A.
正确
B.
错误
【单选题】履带式起重机的三个主要技术性能参数为()
A.
起升速度、爬坡能力和行走速度
B.
起重量、起升速度和回转半径
C.
起重量、起重高度和回转半径
D.
起升速度、起升高度和行走速度
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