问题
选择题
在制作人的口腔上皮细胞装片时,应在载玻片的中央滴上一滴 [ ]
A.清水
B.生理盐水
C.碘液
D.酒精
答案
答案:B
在制作人的口腔上皮细胞装片时,应在载玻片的中央滴上一滴 [ ]
A.清水
B.生理盐水
C.碘液
D.酒精
答案:B
根据对话内容,从所给选项中选出能填入空白处的最佳选项,并将其字母标号填入相应的横线上。 选项中有两项为多余选项. | |
A: Hi, Tina, 1____________? B: It was fantastic, really fantastic. A: 2____________? B: No, I didn't. 3______________. Look, here are my photos. A: 4____________? B: No, there weren't any sharks, but there were some really clever seals. A: Wow, 5_____________. What else did you do? B: Well, I hung out with my friends and I took lots of photos. | |
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