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【简答题】
测量网络幅频特性的方法有( )法和( )法。
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【单选题】We could not reason out the way the robbers escaped，because we were unable to find any ________ of them.
A.
chance
B.
trace
C.
point
D.
signal
【简答题】Its operating profit margins, (ysts point out) (a), are only around (half of that) (b) achieved in the industrial activities of General Electric, (the US company that) (c) is a long-time rival to ...
【单选题】The US achieved its predominance after World WarⅡbecause it had made____ efforts towards this goal.
A.
pain
B.
painstaking
C.
painful
D.
painstakingly
【单选题】There are three kinds of goals: short-term,medium-range and long-term goals. Short-range goals are those that usually deal with current activities,which we can apply on a daily basis.Such goals can be...
A.
those who habe long-term goals will succeed
B.
writing down the dates may discourage you
C.
the goal is only a guide for us to reach our desination
D.
every should have a goal
【单选题】The US achieved its predominance after World War II because it had made ____ efforts towards this goal.
A.
pain
B.
painful
C.
painstaking
D.
painstakingly
【多选题】Amazon, as an e-commerce giant, has achieved great success in online retail. Choose from the following that states its accomplishment.
A.
In 2015, Amazon surpassed Walmart as a Fortune 500 enterprise.
B.
In 2015, Amazon was the world-wide fourth most valuable public company.
C.
In 2015, Amazon became the world largest revenue volume internet company.
D.
In 2015, Amazon was the eighth largest US employer.
【单选题】( America and Americans were prosperous beyond the dreams of the Europeans and Asians whose economies the war had destroyed . ) The US achieved its predominance after World War II because ______.
A.
it had made painstaking efforts towards this goal
B.
its domestic market was eight times larger than before
C.
the war had destroyed the economies of most potential competitors
D.
the unparalleled size of its workforce had given an impetus to its economy
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