单选题：In the author’s view, higher service standards are impossibl

题目分类：英语四级
题目类型：单选题
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题目内容：

In the author’s view, higher service standards are impossible in Israel ________. A．if customer complaints go unnoticed by the management
B．unless foreign companies are introduced in greater numbers
C．if there’s no competition among companies
D．without strict routine training of employees

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答案解析：

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分类：英语四级题型：单选题