在Access中已建立了“学生”表,表中有“学号”、“姓名”、“性别”和“入学成绩”

题型:单项选择题

问题:

在Access中已建立了“学生”表,表中有“学号”、“姓名”、“性别”和“入学成绩”等字段。执行如下SQL命令:Select 性别, avg (入学成绩) From学生 Group by 性别 其结果是______。

A.计算并显示所有学生的性别和入学成绩的平均值

B.按性别分组计算并显示性别和入学成绩的平均值

C.计算并显示所有学生的入学成绩的平均值

D.按性别分组计算并显示所有学生的入学成绩的平均值

考点:计算机等级考试ACCESS全国计算机等级考试二级ACCESS真题2007年4月
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钙原子结构示意图为,钙原子核内质子数为________,它在化学反应中易________(填“得”或“失”)电子。

题型:单项选择题

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在江河两岸钓鱼的人,兀自婉蜒成沿江的风景,让江边水藻的清新酝酿于心底,点缀寂寥的日子。我踏上碎石滩,如踏上惘然而漂泊的人生,成为江海里一只伶丁的船蒿。俯身与石对话,我聆听到了生命的祈祷,感受到了灵魂的颤抖;再看盘踞于碎石之上的大石们,如大智的高僧,应对生活的诘难,领悟禅的深远。每一个人都希望有一处纯粹的心灵高地,每一颗灵魂都希望有一处栖息的居所。此时此刻,我站在时间之上,心愿如圣洁的江帆,飘扬着虔诚者的期望,在浩瀚的烟墨中远航。

小题1:下列划线字读音错误的一项是(   )。(3分)

A.在江河两岸钓鱼的人,(wù)自婉蜒成沿江的风景。

B.让江边水藻的清新酝酿于心底,点(zhuì)寂寥的日子。

C.俯身与石对话,我聆听到了生命的祈祷,感受到了灵魂的(zhàn)抖。

D.每一颗灵魂都希望有一处(qī)息的居所。小题2:下列词语书写全部正确的一项是(   )。(3分)

A.水藻酝酿婉蜒祈祷

B.寂寥漂泊船蒿惘然

C.聆听高僧诘难伶丁

D.盘踞纯粹虔诚浩瀚

题型:单项选择题

Martha was busy with her job. She believed she had to work harder because she loved her father who was sick with cancer. She had to provide for his expensive medicines. Her brothers and sisters meanwhile stayed with their father most of the time. They bathed him, sang for him, spoon-fed(用匙喂) him or simply kept him company.

One day Martha was hurt. She overheard(无意中听到) her father telling her mother, "All our children love me except Martha."

"How can this be?" Martha thought. "Am I not the one killing myself in my work to have money to pay for his medicines? My brothers and sisters do not even provide their share in the expenses."

One night, as Martha was as usual late in going home, she saw her father was lying awake. She walked close to his bedsides. Her father held her hands and said, "I miss you. I don't have much time. Stay with me." And she stayed with her father holding his hand the whole night.

The next morning Martha said to everybody, "I have taken a leave of absence. I would like to be with father. I will bathe him and sing for him from now on." Her father had a beautiful smile. He knew Martha loved him, too.

As children, we need the presence of our loved ones. Adults need no less. I have observed my mother’s orchids(兰花). When she is away for a long time, they are unhealthy and many of them wither(干枯). But when she is around , they bloom with beautiful flowers. My mother does nothing special . She just spends her time looking after them.

小题1:Before Martha heard her parents’ talk ,she thought her father _____.

A.was satisfied with her love for him

B.disliked her brothers and sisters

C.was proud of her

D.would recover from the disease小题2:After staying with her father for one night, Martha _____.

A.decided to give up her job

B.understood what her father really needed

C.realized her father loved her most

D.loved her father more than before小题3:By telling Matha’s story, what does the author try to express?

A.Nothing is more important than the company of loved ones.

B.Money and a successful career don’t always bring happiness

C.Adults need the presence of their loved ones more than children do.

D.Plants like orchids do have feelings.

题型:单项选择题

何谓水泥混凝土的工作性?影响工作性的主要因素和改善工作性的措施。

题型:单项选择题

呕吐最常见的病因是()

A.消化系统疾病

B.中枢神经系统疾病

C.前庭障碍性疾病

D.感染

E.中毒

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