It was in 1976 we began to introduce this new technique. A.when B.which C.since D.that 解析:强调句型. 答案:D 查看更多

 

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It was in 1976      we began to introduce this new technique.

A.when              B.which             C.since             D.that

 

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It was in 1976      we began to introduce this new technique.

A.when              B.which             C.since             D.that

 

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