28． What you saidquite to the point but what we needexperienced technical workers．A. is；al

问题补充：

28． What you saidquite to the point but what we needexperienced technical workers．

A. is；ale

B. is；is

C. are；are

D. are；is

答案：

(答案→)A. is；ale

B. is；is

C. are；are

D. are；is

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