when first _______to the market ,these products enjoyed great success.A:introducing B:introducedC:introduce D:being introduced

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whenfirst_______tothemarket,theseproductsenjoyedgreatsuccess.A:introducingB:introducedC:introduceD:b

when first _______to the market ,these products enjoyed great success.A:introducing B:introducedC:introduce D:being introduced
when first _______to the market ,these products enjoyed great success.
A:introducing B:introduced
C:introduce D:being introduced

when first _______to the market ,these products enjoyed great success.A:introducing B:introducedC:introduce D:being introduced
应该选B.
这是一句状语省略句.从句中的主语即是主句中的"these products"．因为products与introduce之间是被动的关系,即"产品是被介绍/推荐"的.因此是用被动形式"introduced".
整句话的翻译是:当这些产品被首次推向市场时,就取得了很大成功.

when first _______to the market ,these products enjoyed great success.A:introducing B:introducedC:introduce D:being introduced 26.This is the first time in their _______to ski on the ApLs.A.life B.lifes C.lives When ()our first class () (开始) he first started a___ when _______to get there? When was the saying first used?翻译 when was teh saying first used When I first time met him,I when( )your first class ( )in the moring when WE meet THEM THE FIRST When I First Saw You 歌词 Love lasts when the relationship comes first When was the first Earth Day celebated? Love lasts when the relationship comes first when my first wartime christmas came when is the Chinese first Labor Day? When were books first _____________(发明) when did you first play piano?