674 Studies of the human “sleep-wake cycle” have practical relevance for matters ranging from duty assignments in nuclear submarines and air-traffic control towers to the staff of shifts in 24-hour factories.
(A) to the staff of
(B) to those who staff
(C) to the staffing of
(D) and staffing（C）
(E) and the staff of
不太明白为什么要用staffing of 不用staff of呢？
695 The average weekly wage nearly doubled in the 1970’s, rising from $114 to $220, yet the average worker ended the decade with a decrease in what their pay may buy.
(A) with a decrease in what their pay may buy
(B) with what was a decrease in what they were able to buy
(C) having decreased that which they could buy
(D) decreasing in purchasing power（E）
(E) with a decrease in purchasing power
这道题with结构和分词结构做修饰的概念又分不清了,求大N快敲打敲打吧！
701 The brain is something of a stimulus reduction system, a means to reduce, in order to comprehend, the nearly infinite amount of stimuli that reach the senses at any given moment.
(A) a means to reduce, in order to comprehend, the nearly infinite amount
(B) a means to reduce, in order to comprehend, the nearly infinite number
(C) the means of reducing for comprehending the nearly infinite number
(D) the means that reduces, in order to comprehend, the nearly infinite amount（B）
(E) the means for reducing in order to comprehend the nearly infinite amount
再请教，这道题是考a means to 和the means of doing 的区别吗？那该，怎么区分呢？
702. The British Admiralty and the War Office met in March 1892 to consider a possible Russian attempt to seize
(A) how they would have to act militarily to deal with them
(B) how to deal with them if military action would be necessary
(C) what would be necessary militarily for dealing with such an event
(D) what military action would be necessary in order to deal with such an event（D）
(E) the necessity of what kind of military action in order to take for dealing with it
搞不懂C错哪了啊？
705. The cameras of the Voyager II spacecraft detected six small, previously unseen moons circling Uranus, which doubles to twelve the number of satellites now known as orbiting the distant planet.
(A) which doubles to twelve the number of satellites now known as orbiting
(B) doubling to twelve the number of satellites now known to orbit
(C) which doubles to twelve the number of satellites now known in orbit around
(D) doubling to twelve the number of satellites now known as orbiting（B）
(E) which doubles to twelve the number of satellites now known that orbit
晕啊!不是be known as 是固定搭配么？NN们快给讲讲，多谢多谢！
674 staffing职工安置和duty assignments对应
695 end是不及物动词后用介词短语，另外C,D中的doing sth. 前没有逗号构不成伴随结构。
701a means to是a stimulus reduction system的同位，算是解释。the means一般不作同位
。
702 见og73In C, necessary militarily is awkward and vague.
705 简单区分known to do，known as sth.这里sth.一般不是动名词doing.
674 Studies of the human “sleep-wake cycle” have practical relevance for matters ranging from duty assignments in nuclear submarines and air-traffic control towers to the staff of shifts in 24-hour factories.
(A) to the staff of
(B) to those who staff
(C) to the staffing of
(D) and staffing（C）
(E) and the staff of
不太明白为什么要用staffing of 不用staff of呢？
from ...to ...结构是修饰matters的staff 是指人员，而the staffing 是指人员的安排
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