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【判断题】
跌倒是老年人常出现的安全问题A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】加工白茶的鲜叶原料一般应选择 ( ) 品种茶树的鲜叶。
【单选题】听力原文：V: Could you tell me a bit about quality control at the factory? P: Well, there are four main quality control inspection points. We begin by visiting our suppliers to make sure we are happy with ...
A.
three
B.
four
C.
five
【单选题】听力原文：V: Could you tell me a bit about quality control at the factory? P: Well, there are four main quality control inspection points. We begin by visiting our suppliers to make sure we are happy with ...
A.
three
B.
four
C.
five
参考解析：
知识点：
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