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Evaluate these two SQL statements:What is true about them?()A. The two statements produce identical results.B. The second statement returns a syntax error.C. There is no need to specify DESC because the results are sorted in descending order by default.D.
题目
A. The two statements produce identical results.
B. The second statement returns a syntax error.
C. There is no need to specify DESC because the results are sorted in descending order by default.
D. The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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第1题：
下列复选框构造方法，错误的是 ( )
A．setLayout(new GridLayout(3，1))；
B．add(new Checkbox("one"，null，true))；
C．add(new Checkbox("two"))；
D．add(new Checkbox("one"，true))；
正确答案：D
解析：该题考查复选框的构造方法。构造方法的一般格式为：public Checkbox (String label，CheckboxGrou Pgroup，boolean state)。选项A、B、C都是正确的，而选项D是错误的，它的第二个参数应该是CheckboxGrou Pgroup，所以选项D是错误的。 -
第2题：
WhichcomponentoftheOraclenetworkingarchitectureprovidescharactersetanddatatypeconversionbetweendifferentcharactersetsontheclientandserver?()A.SQL*Plus
B.OracleNet
C.Two-TaskCommon（TTC）
D.OracleProtocolSupport（OPS）
参考答案：C
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第3题：
12． About_______ of the workers in the factory were born in the __________．
A． two- thirds;1970
B． two- thirds ; 1970s
C． two-third ; 1970
D． two-third ; 1970s
正确答案：B
12．B【解析】句意：工厂里大约2/3的工人出生在20世纪70年代。分数的表达为分子用基数词，分母用序数词，如果分子大于1，则分母要用复数，排除C、D，年代的表达要在年份后加s．故选B。 -
第4题：
下列复选框构造方法，错误的是()。
A．setLayout(newGridLayout(3,1));
B．add(newCheckbox("one",null,true));
C．add(newCheckbox("tWO");
D．add(newCheckbox("one",true);
正确答案：D
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第5题：
About ________ of the workers in the factory were born in the ________.
A.two-thirds, 1970 B.two-thirds, 1970s C.two-third,1970 D.two-third, 1970s
正确答案：B
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第6题：
资料：We never thought we'd say this, but we'd welcome back some chilly weather.
A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week, according to the National Weather Service.
According to the NWS, a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.
Temperatures across the Midwest will drop into the 60s and 70s—a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and Washington.
The cool breezes may be a welcome relief this time around, but remember the last few times we got hit with Arctic air?
Temperatures in cities including Chicago, Cleveland, New York, and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we're sure you remember.
What’s the temperature when the report was written?A.About 60s and 70s.
B.Between 60s and 90s.
C.Below 60s.
D.About 80s and 90s.答案：D解析：本题考查的是细节理解。
【关键词】temperature；when the report was written
【主题句】Temperatures across the Midwest will drop into the 60s and 70s—a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. 中西部地区的气温将下降到60-70华氏度，与最近几周的80-90华氏度的温度有很大的不同。
【解析】本题的问题是“写这篇报道时气温是多少？”。选项A意为“约为60-70华氏度”；选项B意为“为60和90华氏度之间”；选项C意为“华氏60度以下”；选项D 意为“约为80和90华氏度”。根据题目中关键词找到主题句，结合主题句故选D。