第27题: [单项选择]For ten years the problem about the water has not been solved, we came to think that it has been a ______ problem in this are A. A. perpetualB. persuasiveC. picturesqueD. possessive 参考答案:A 答案解析:perpetual永久的;persuasive善说服的;picturesque独特的;possessive所有的,物主的。
第33题: [单项选择]只有满足连接条件的记录才包含在查询结果中,这种连接为________。 A. 左连接 B. 右连接 C. 内部连接 D. 完全连接 参考答案:C 答案解析:[知识点] 连接查询 [评析] SELECT…… FROM TABLE INNER |LEFT|RIGHT|FULL JOIN TABLE ON JOINCONDITION<