由异或门组成的电路如题3-18图所示,A、B、C、D为输入二进制代码,F为输出,该电

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问题:

由异或门组成的电路如题3-18图所示,A、B、C、D为输入二进制代码,F为输出,该电路具有()逻辑功能。

A.偶校验电路

B.奇校验电路

C.数值比较器

D.数据分配器

考点:注册电气工程师电气工程专业基础数字电子技术
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.加工引药时,电雷管必须()插入药卷内。

A.将其一半

B.将其2/3

C.全部

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ARIEL, West Bank: A suicide bomber blew up near Israeli soldiers outside a Jewish settlement in the West Bank yesterday, killing at least three people and wounding about 30

Ron Nachman, mayor of the settlement of Ariel. “Soldiers were among the casualties(伤亡者). ”People on the spot said the bomber blew up after soldiers eating at a food stand in a petrol station at the entrance of the settlement found him. According to some people on the spot accounts reported by Israeli media, a soldier shot and wounded the bomber, who then exploded.

The Magen David Adorn ambulance service said at least three people were killed and at least 30 wounded in the blast(爆炸), which set the bomber burning at Ariel, about 25 kilometers east of Tel Aviv.

  A fire brigade(旅) official said: “The bomber was still burning when we got there and we put out the fire immediately.”

  Meanwhile, a blast shook homes in Lebanon’s largest Palestinian refugee camp early yesterday, damaging buildings but causing no injuries, Palestinian sources said. They said the bomb was planted outside the home of a member of Palestinian President Yasser Arafat’s Fatah faction in Ain el-Hilwch camp, and exploded while the family was sleeping.

小题1:Some of people including ________were killed or wounded in the blast accident.

A.mayor  

B.soldiers

C.rescue workers  

D.a fire brigade official小题2:The suicide bomber blew himself up because________.

A.there was something wrong with his brains

B.he couldn’t see the settlement’s mayor

C.a soldier shot and wounded him

D.he wanted to make himself known小题3:It can be concluded that the passage is most probably part of a(n)________.

A.announcement 

B.advertisement

C.science research 

D.news report

题型:单项选择题

和地面有良好通讯联系的航空器在很厚且没有得到详细云系分布资料的雨层云中做仪表飞行的最大危险是()。

A.闯入云中埋臵的积雨云中

B.由于恶劣能见度造成的视觉障碍引起两机相撞

C.迷航

D.飞错高度层

题型:单项选择题

影响企业创造价值的因素有三个:投资资本回报率、资本成本以及增长率,下列说法不正确的是( )。

A.投资资本回报率反映企业的盈利能力,由投资活动决定

B.资本成本用加权平均资本成本计量,反映权益投资人和债权人的期望值

C.增长率用预期增长率计量,由外部环境和企业的竞争能力决定

D.增长率的高低不能决定企业是否创造价值,但可以决定企业是否需要筹资

题型:单项选择题

研磨圆形孔时出现喇叭口实因为()

A.研磨棒变形

B.研磨剂涂得薄

C.研磨剂涂得厚

D.研磨棒短

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