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问题 单项选择题

在SQL SELECT语句的ORDER BY短语中如果指定了多个字段，则______。

A．无法进行排序
B．只按第一个字段排序
C．按从左至右优先依次排序
D．按从右至左优先依次排序

答案

参考答案：C

解析： ORDER BY短语中如果指定了多个字段，则按照从左至右的顺序依次排序。

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单项选择题

Indians always shake (摇) their heads when they talk to others. (41) does not have the same meaning (42) "no". If someone wants to visit India, (43) should know this, (44) it will give him some trouble.
One day, a foreign officer went to India on business. He hired (雇佣) a car and an Indian to drive it. When he (45) the driver to send him to his office, the driver shook his (46) at once. The officer repeated his order, and the driver (47) so again. At last, the officer, of course, got (48) .
" (49) dare you refuse (拒绝) my order" he shouted. "Drive me to office immediately!"
The driver answered (50) quite a loud voice, too. "Yes, sir !" But he still shook his head at the same time. Suddenly the officer realized that, "No means Yes here!\

[A] with[B] as [C] on
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