问题 填空题

下列命令执行后的结果是 【6】 。 STORE"GOOD BYE!"TO X LEFT(X,2),SUBSTR(X,6,2)+SUBSTR(X,6),RIGHT(X,3)

答案

参考答案:GO BYBYE!YE!

解析: RIGHT(<字符表达式>,<长度>):从指定表达式值的右端取一个指定长度的子串作为函数值。SUBSTR(<字符表达式>,<起始位置>[,<长度>])从指定表达式的指定起始位置取指定长度的子串作为函数值。LEFT(<字符表达式>,<长度>):从指定表达式值的左端取一个指定长度的子串作为函数值。

判断题
单项选择题

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

The eighteenth-century author Jonathan Swift once suggested in a satiric essay Irish farmers could eat their children to address the twin problems of overpopulation and lack of food.()

A. Irish farmers could eat their children to address the twin problems of overpopulation and lack of food

B. that the twin problems of overpopulation and lacking food could be addressed by the eating of children by Irish farmers

C. of the twin problems of Irish farmers, overpopulation and a lack of food, could be addressed by the eating of their children

D. that Irish farmers could address the twin problems of overpopulation and lack of food by eating their children

E. that Irish farmers, facing overpopulation and lacking food, could address the twin problems through eating their children