The steadily rising cost of labor on the waterfront has greatly increased the cost of shipping cargo by water．
A. continuously
B. quickly
C. excessively
D. exceptionall
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According to some researchers， by measuring the 1evels of NT—proBNP in the blood
According to the author，what is the best way to encourage people to give a street
A. To wear an attractive hat．
B. To fill up the hat with money．
C. To leave a couple 0f pennies in the hat．
D. To empty the hat completely．
学生为了自己在班级中的成绩排名而努力学习，这样的学习动机主要属于 （）
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