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【单选题】
According to the passage, in what way did the Sumerian language resemble ancient Greek and Latin?A.
It Was invented in Mesopotamia.
B.
It became well established around 3000 B.C.
C.
It became a classical language.
D.
It was used exclusively for business transactions.
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【单选题】It can be seen from the passage that ______.
A.
the capacity to generate electricity is the distinctive characteristic of the fish
B.
the current travels in an upward direction from the positive side to negative side in torpedo's electric cells
C.
some fish can produce enough electricity to drive a number of electric motors
D.
the torpedo' s electric cells have a shape with six sides
【单选题】There on the shore you can see a steam powered ship covered with dirt _____, waiting to be taken apart. [ ]
A.
lay in ruins
B.
lie in ruin
C.
laid in ruins
D.
lie in ruins
【单选题】It can be inferred from the passage that by 1870 ______.
A.
the steam engine had been invented
B.
a national commission on agriculture had been established
C.
the U.S.horse population was about 10 million
D.
technology began to be more economical
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