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【判断题】
The nation that has both absolute disadvantages in production of the two commodities should specialize in the production of and export the commodity in which its absolute disadvantage is greater and import the commodity in which its absolute disadvantage is smaller.A.
正确
B.
错误
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举一反三
【简答题】试述Ig的生物学功能。
【简答题】试述 Ig 的生物学功能。
【简答题】When George defeated __________ in the 1,500-metre race and won the gold medal, his friends shouted out __________. They came forward to __________ and to __________ the victory. (excitement, congra...
【简答题】When George defeated his _________(对手)in the 1,500-meter race and won the gold medal, his friends shouted out in excitement.
【单选题】When George defeated his ______ in the 1,500-metre race and won the gold medal, his friends shouted out in excitement.
A.
colleagues
B.
competitors
C.
friends
D.
players
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