以下哪个逻辑操作符在Where子句中使用时,只有两个条件同时为真(TRUE)才返回真

题型:单项选择题

问题:

以下哪个逻辑操作符在Where子句中使用时,只有两个条件同时为真(TRUE)才返回真(TRUE)

A.OR
B.NOT
C.AND
D.LIKE

考点:计算机认证考试OCP认证OCP认证
题型:单项选择题

车钩缓冲器装置在运行中,机车的纵向力都是经过缓冲器来传递的,改善运行品质。

题型:单项选择题

读写任务

阅读下面的短文, 然后按照要求写一篇150词左右的英语短文。  

     Selfconfidence, as is approved by research and practice, has an amazingly powerful influence on the

output of people's activities.Patients who believe that they'll recover soon generally cure faster than those

who think they won't.Students with optimistic characters usually provide better performance, even if they

work the same hard as others.Although someone may regard such conclusion as superstitious (迷信的),

it does take place everyday and everywhere.

     Neural scientists have discovered that, when a man feels confident, his brain will release some kinds

of hormone that boost brain activity and improve the efficiency of his immune system.In contrast, a

melancholic (忧郁的) brain is suppressed by other chemicals and cannot fully exhibit its potential.

     To help building up selfconfidence, you can take the following two steps.First, identify your virtues

and value them.If you constantly compare your weakness to others' advantages, you'd only gain

frustration rather than confidence.Second, track every little progress you've made and review them

frequently.You may not possibly become perfectly successful in one day, but if only you can see yourself

growing gradually, surely you're on the right way.There're also other methods making you more confident

that depend on yourself to find out, and they're all necessary elements to make you more competitive in

your area.

[写作内容]

1.  以约30词概括上文的主要内容;

2.  以约120词写一篇记叙文, 描写你意识到自信的重要性的一次经历, 内容包括:

(1)成功主要取决于自信, 有了自信, 我们能克服任何困难;

(2)以你自己的一个实例来说明自信的重要性。

[写作要求]

1.  作文中可以使用亲身经历或虚构的故事, 也可以参照阅读材料的内容, 但不得直接引用原文中的句子;

2.  作文中不能出现真实姓名和学校名称;

3.  标题自拟。

[评分标准]

概括准确, 语言规范, 内容合适, 语篇连贯。

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题型:单项选择题

膀胱癌最常见的病理类型是()

A.腺癌

B.鳞癌

C.移行细胞癌

D.非上皮性肿瘤

E.绒毛膜上皮癌

题型:单项选择题

在绩效中,相当于通常所说的业绩的是()

A.工作技能

B.工作能力

C.工作效率

D.工作态度

题型:单项选择题

某企业2010年11月1日收到一张商业承兑汇票,票面金额为100000元,年利息率为6%,期限为6个月。年末资产负债表上列示的“应收票据”项目金额为()

A、100000元

B、101000元

C、103000元

D、100500元

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