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1. Results In PCR, the primer for internal reference gene, content of dNTP, and runing cycles affect the products much than the annealing temperature. 结果在PCR反应中,扩增内参照和目的基因的引物比例、底物浓度以及PCR反应的循环次...


run是重读闭音节,重读闭音节(单音节)的单词变动名词时须双写最后一个字母加ing,所以run的动名词为running。 例句:He is running in the playground now! 类似的单词还包括: swim的动名词为swimming cut的动名词为cutting

动词的现在进行时一般是直接加ing,run的现在分词形式是双写n再加ing,running 满意请采纳,谢谢

填 Is running 若有疑问及时追问,如满意请点击下面的“选为满意答案”按钮,谢谢!O(∩_∩)O

run jog swim

1.I am running 2.He is listening music 3.We are cleaning classromm 4.My mother isn't making soup 5.Ther are't cuttingdown trees 6.Are you washing the dishes.Yes,I am 7.I'm not using computer 8.Is your grandpa reading newspaper

She isn't running.She doesn't run. Dad is driving.Dad doesn't drive. I am not going.I do not go.

Tom isn't running in the park.

they are jumping off the wall and running away . 为你解答,如有帮助请采纳, 如对本题有疑问可追问,Good luck!

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