14.By focusing on the interesting, __ the significant, the penny press newspapers of the 1830's helped to change the concept of news.
(A)which does not necessarily
(B)not necessarily
(C)was not necessarily
(D)nor necessarily being
为什么选B啊~怎么necessarily是浮副词呢?
10.One of the basic principles of wildlife conservation involves __ adequate natural food and shelter to maintain populations of each species in a given habitat.
(A)the provision
(B)that provision
(C)to provide
(D)providing
答案是D,请问involve后面是加V-ing形式么?
9.A television camera produces an image by convening __ receives into a series of bright and dark dots.
(A) and it
(B) it
(C) what it
(D) that it
答案是C,what后面又有it ,岂不是重复?为什么不是D?
11.Managers often receive considerable training in the "technical" aspects of their jobs __ very little in the "people management" aspects.
(A)so
(B)just as
(C)yet
(D)and that
答案是C,yet有这种用法么?为什么不能选B?
谢谢大家
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