ELISA 是哪种免疫测定方法的英文缩写
A、直接凝集试验B
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-Thiskindofsportsisexciting.
-Yes,butit'sdangerous.Onecan'tdoit_______heorshehasgotsometraining.
---Excuseme!Couldyoutellme____________?
---Sure.Gostraightandturnright.It’sdownBridgeStreetonyourleft.
-Couldyoutellme_______?
-Untiltomorrowafternoon.
下列物质（或其主要成分）的化学式与其名称不相符的是（）
Thankyouforthe_______thatyougavemewhenIfeltEnglishtoodifficulttolearn.
