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【单选题】
The real detective lives in 'an unpleasant moral twilight' because______.A.
he is an expensive public servant
B.
he must always behave with absolute legality
C.
he is obliged to break the law in order to preserve it
D.
he feels himself to be cut off from the rest of the world
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【单选题】Energy crisis The year 1973 brought an end to the era of secure, cheap oil. In October, as a result of the Arab Israeli War, the Arab oil-producing countries cut back oil production and embargoed (禁运)...
A.
Y
B.
N
C.
NG
【简答题】The death of the Queen __________ the end of an era. (credit sound mark figure)
【单选题】What does the title “End of an Era” indicate according to this passage?
A.
The US Federal Reserve will stop borrowing money to individuals.
B.
The Great Recession will end after a long-drawn period.
C.
The interest rates will stop going higher.
D.
The US Federal Reserve will stop service.
【单选题】Steve Jobs is one of the persons founded Apple Computer Company. His death marked the end of an era (时代).
A.
whose
B.
who
C.
which
D.
whom
【简答题】将奇数或偶数波带遮挡住的光阑称为波带片。证明:(1)波带片有一个类似普通透镜的成像公式;(2)若f是波带片的焦距,相应决定一个主焦点,则在 处尚有一系列次焦点。
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