皮皮学，免费搜题
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搜题
【单选题】
配合滴定的直接法，其滴定终点所呈现的颜色是( )。A.
金属指示剂与被测金属离子形成的配合物的颜色
B.
游离金属指示剂的颜色
C.
EDTA与被测金属离子形成的配合物的颜色
D.
上述A项与B项的混合色
E.
上述B项与C项的混合色
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】关于环层小体以下哪项正确
A.
分布于皮肤真皮乳头内
B.
感受压觉和振动觉
C.
圆形,与触觉小体大小相似
D.
有髓神经纤维末梢失去髓鞘穿行于中央
E.
薄层结缔组织组成被囊
【判断题】Questions 4 to 6 are based on the following passage. The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music p...
A.
正确
B.
错误
【简答题】The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music player. The first Walkman devices used magnetic audio ...
【判断题】The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music player. The first Walkman devices used magnetic audio ...
A.
正确
B.
错误
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