A、amended
B、patented
C、assimilated
D、resolved
第2题
第4题
It was in 2005______we began to introduce this new technique into our company.
A.which
B.then
C.when
D.that
第5题
It was in 2005______we began to introduce this new technique into our company.
A.which
B.then
C.when
D.that
第6题
第7题
第8题
Since the introduction of the new technique, the production cost______greatly.
A.reduces
B.is reduced
C.is reducing
D.has been redused
第9题
A new technique _______ worked out, we set about our project.
A. being
B. to be
C. having
D. having been
第10题
A.being
B.having
C.having been
D.to be
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