It is said that there are some diseases 空 by chemicals空 in people’s bodies over time.A.causing; building up B.caused; building up C.causing;built up D.caused;build up
问题描述：
It is said that there are some diseases 空 by chemicals空 in people’s bodies over time.
A.causing; building up B.caused; building up C.causing;built up D.caused;build up
答
It is said that there are some diseases 空 by chemicals空 in people’s bodies over time
A.causing; building up B.caused; building up C.causing;built up D.caused;build up
选B
据说由化学药品引起的一些疾病随着时间的推移逐渐建立在人体内。
答
B.caused; building up
答
B,前面是由.造成的,应该是被动,后面build up的逻辑主语是diseases,故是主动关系