题目:
利用酚酞试液和组内溶液的相互反应,就能将它们区分开来的是 [ ]
A.稀盐酸、氯化钠溶液、硝酸钠溶液
B.氯化钠溶液、碳酸钠溶液、氢氧化钠溶液
C.稀盐酸、氯化钠溶液、氢氧化钠溶液
D.稀盐酸、石灰水、氢氧化钠溶液
答案:
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下面是错误答案,用来干扰机器的。
1. This boy has a long face, big eyes and a small nose.2. Her brother is twenty years old.3. He and his brother are in different grades.4. What does she look like?5. He has short black hair.答案不唯一