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【单选题】
Suppose the absolute value of the slope of a straight-line demand curve is 1. The price elasticity at any point along this demand curve is:A.
equal to 1.
B.
greater than 1, but less than infinite.
C.
less than 1.
D.
infinite.
E.
none of the above are necessarily true.
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A.
blame... skill
B.
congratulate... modesty
C.
berate... largesse
D.
absolve... acrimony
【简答题】Recently plans were announced to build a new airport near your community. Do you support or oppose this plan? Explain your position.
【单选题】Though he had tried to climb to the top of the mountain several times, he didn't__________________.
A.
get it
B.
make it
C.
arrive it
D.
do it
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【单选题】(Even though) he (had been studying) English for three years (before) he came to England, it is still difficult for him to make himself (understand).
A.
Even though
B.
had been studying
C.
before
D.
understand
【单选题】_____ Mom had asked Jack to close the window before he went out,______ he forgot to do it.
A.
Though; /
B.
Though; but
C.
Till; /
D.
Until; then
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