下列哪个布局管理器能够帮助用户处理两个或者两个以上的成员共享同一个显示空间, 它把容

题型:单项选择题

问题:

下列哪个布局管理器能够帮助用户处理两个或者两个以上的成员共享同一个显示空间, 它把容器分成许多层,每层懂得显示空间占据这个容器的大小

A.CardLayout

B.BorderLayout

C.FlowLayout

D.GridLayout

考点:计算机等级考试JAVA计算机二级(Java)59
题型:单项选择题

(9分)

叠氮化合物应用广泛,如NaN3,可用于汽车安全气囊,PhCH2N3可用于合成化合物V(见下图,仅列出部分反应条件Ph—代表苯基

(1)下列说法不正确的是        (填字母)

A.反应①、④属于取代反应

B.化合物I可生成酯,但不能发生氧化反应

C.一定条件下化合物Ⅱ能生成化合物I

D.一定条件下化合物Ⅱ能与氢气反应,反应类型与反应②相同

(2)化合物Ⅱ发生聚合反应的化学方程式为               (不要求写出反应条件)

(3)反应③的化学方程式为             (要求写出反应条件)

(4)化合物Ⅲ与phCH2N3发生环加成反应成化合物V,不同条件下环加成反应还可生成化合物V的同分异构体。该同分异物的分子式为             ,结构式为                  

(5)科学家曾预言可合成C(N3)4,其可分解成单质,用作炸药。有人通过NaN3与NC-CCl3,反应成功合成了该物质下。列说法正确的是             (填字母)。

A.该合成反应可能是取代反应

B. C(N3)4与甲烷具有类似的空间结构

C. C(N3)4不可能与化合物Ⅲ发生环加反应

D. C(N3)4分解爆炸的化学反应方程式可能为:C(N3)4C+6N2

题型:单项选择题

下列词语中加粗字的解释全都正确的一项是[ ]

A.群贤至(全) 少长集(都)   茂林竹(修整) 清流激(急流的水)

B.可乐也(实在)人之相(交往)  山峻岭(高)  寄所托(依、随着)

C.感慨之(附着)修短随(变化)  终于尽(至、及)之所欣(过去,以前)

D.之于怀(比喻)其一也(思想情趣)坐其次(排列) 叙时人(一个一个)

题型:单项选择题

某集团总公司为其子公司与某钢厂的钢材买卖合同在1000万元的限度内提供连带保证,并委派专人监督合同的执行。钢厂交付给子公司的价值50万元的一批钢材质量严重不合格,子公司未提出异议并接受了货物,但集团总公司以书面形式向钢厂提出了异议,要求退货:子公司与钢厂的买卖总价款额达到800万元时,集团总公司以书面通知钢厂终止保证合同,但在钢厂收到该通知之前钢厂又交付给子公司价款额为100万元的钢材,钢厂收到通知后又交付给子公司价款额为100万元的钢材。集团总公司承担保证责任的范围应当是:

A.1000万元

B.900万元

C.850万元

D.750万元

题型:单项选择题

Listen carefully; we would like to tell you something that could save your precious time and money! Best of all, it is free! It’s “no”. What do you ask? We’ll say it again. “No”. Sweet and simple “no”.

Say “no” at your office and see how quickly that pile of work on your desk disappears. “Saying “no” to others means you are saying “yes” to yourself,” said Leslie Charles, a professional speaker from East Lansing, Michigan.

Susie Watson, a famous writer, said people who always say “yes” need to say “no” without guilt (内疚) or fear of punishment.  “I would rather have someone give me a loving ‘no’ than an obligated (强制的)‘yes’”, she said.

Susie Watson says she feels “no” obligation to give an explanation when she says “no” either socially or professionally. Does she feel guilty about it? “Not at all,” said Watson, who is director of advertising and public relations at Timex Corp in Middle-bury. “Most people are afraid of saying “no”. My advice is to say “yes” only if you don’t mean ‘no’.”

Watson said “no” is the most effective weapon against wasting time. “Every year there are more demands on your time. Other people are happy to use up your time,” Watson said. Time saving appears to be “no’s” greatest friend. “No” can be your new friend, a powerful tool to take back your life. “No” may even take you further in the business world than “yes”. “No” is power and strength. “No” now seems completely correct. “Saying ‘no’ isn’t easy. But finally it’s greatly liberating,” Charles said. But, he added, a “no” project needs to be worked on every day because it is hard to change long-term habit.

But, he also warns: “Don’t go to extremes.  Don’t find yourself saying “no” to everything. In return you should learn to hear “no”.”

1. The underlined part “saying ‘yes’ to yourself” in the second paragragh means ________.

A. you can have more time to play with others

B. you needn’t care about other’s feeling if you are happy

C. you are selfish and treat others rudely

D. you can deal with your business as you have planned

2. When you say “no” to others you should say it in a ________.

A. secret way     B. polite way         C. proud way        D. guilty way

3 In Watson’s opinion, people can save much time on condition that ________.

A. they say “no” at a suitable time        B. they say “no” as much as possible

C. they are afraid of saying “no”         D. they make others angry at them

4. If a person says “no” to everything, the result he or she receives may be that he or she ________.

A. enjoys a wonderful life              B. makes a lot of money

C. faces difficulty in life                D. forgets to say “yes” in the end

题型:单项选择题

停经50余天, * * 少量出血,子宫与孕月相符,宫口未开为()。

A.先兆流产

B.难免流产

C.完全流产

D.稽留流产

E.感染性流产

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