83. Any medical test will sometimes fail to detect a condition when it is present and indicate that there is one when it is not.
(A)a condition when it is present and indicate that there is one
(B)when a condition is present and indicate that there is one
(C)a condition when it is present and indicate that it is present
(D)when a condition is present and indicate its presence
(E)the presence of a condition when it is there and indicate its presence
33. From the earliest days of the tribe, kinship determined the way in which the Ojibwa society organized its labor, provided access to its resources, and defined rights and obligations involved in the distribution and consumption of those resources.
(A)and defined rights and obligations involved in the distribution and consumption of those resources
(B)defining rights and obligations involved in their distribution and consumption
(C)and defined rights and obligations as they were involved in its distribution and consumption
(D)whose rights and obligations were defined in their distribution and consumption
(E)the distribution and consumption of them defined by rights and obligations
83题,C中it指代condition,condition是前一句的宾语,是可以的
33题,C中they指代rights and obligations,rights and obligations也是前一句的宾语,却是不可以的