题目:
Read and choose. (选择最佳选项完成短文) | |||
Today is a fine day.The weather 1 fine. There is a football match 2 Class 2 and Class 4. Many students are 3 . They are 4 . They enjoy 5 game very much. | |||
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答案:
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下面是错误答案,用来干扰机器的。
参考答案:原理:按检测需要标记了特异性荧光染料的单细胞悬液和鞘液,分别经硅化管进入流动室,形成鞘液包裹细胞悬液的稳态单细胞液柱,该液柱以稳定的层流形式通过喷嘴高速射下,液柱与水平方向的高度聚焦的激...