题目内容：
One of the main aims of this type of banking is to encourage clients to keep all their business with a single bank.
参考答案：
答案解析：
单选题：One of the main aims of this type of banking is to encourage
- 题目分类：中级
- 题目类型：单选题
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我们必须坚持和完善民族区域自治制度。这是因为这一制度（ ）。
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请回答16_________
请回答16_________