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问题 选择题

西楚霸王项羽认为自己力能举鼎，有万夫不挡之勇，不听文臣武将的劝谏，结果是四面楚歌，垓下大败，乌江自刎。项羽的失败启示我们[ ]

A．人应自信，但不可自负

B．人应该有一定的自信心

C．人应该有一定的自尊心

D．人应该自信，但不可自卑

答案

答案：A

完形填空

阅读下面短文，掌握其大意，根据空白处的首字母填一个词，使文章逻辑通顺，意义连贯，语法准确。

The Great President

As the f   小题1:  of the republic, the president had many good q   小题2:. Before coming to p  小题3: , he was a g   小题4:  lawyer. He was willing to selflessly help everyone who turned to him. He accepted no fee to offer legal g   小题5:  and opinions to those who were out of work or uneducated. Later, believing all mankind to be e   小题6: , he d   小题7:  himself to stopping the unfair anti-black laws.  He set up the Black Youth League and was voted to be the leader. However, though he kept peaceful principles without v  小题8: or terror, his mean enemies still blew up his house and a  小题9:  his relatives, and he himself couldn’t escape being s   小题10:  to 30 years in prison.
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单项选择题

一个两输入端的门电路，当输入为1和0时，输出不是1的门是（）。

A、与非门

B、或门

C、或非门

D、异或门
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