34. This is a difficult problem all of us can't work it out.A. such; thatB. so;thatC. suc

问题补充：

34. This is a difficult problem all of us can work it out.

A. such; that

B. so;that

C. such; as

D. so;as

答案：

(答案→)A. such; that

B. so;that

C. such; as

D. so;as

解析：可联系答.案.网客服索取。