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1 饮用的纯净水替代蒸馏水 纯净水可用于做观察根对矿质元素的交换吸附现象实验。石明国 (江苏省南通市如东县马塘中学 2 2 64 0 1)2 口腔上皮细胞的观察 用压舌板在口腔侧壁上稍用力刮几下 ,然后将其置于装有 10ｍＬ生理盐水的烧杯中搅几下 ,重复 2次 ,然后做临时装片?
1 Drinking Purified Water Instead of Distilled Water Purified water can be used to observe the phenomenon of exchanging and adsorbing mineral elements. Shi Mingguo (2, 640/1, Matang Middle School, Rudong County, Nantong City, Jiangsu Province, China) 2 Observation of oral epithelial cells with a spatula on the side wall of the oral cavity for a few scrapes, then placing it in a container containing 10 mL of saline In a beaker, stir a few times, repeat 2 times, then make temporary loading?