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【单选题】
George Washington's dental surgery is mentioned to_______A.
show the primitive medical practice in the past
B.
demonstrate the cruelty of slavery in his days.
C.
stress the role of slaves in the U. S. history.
D.
reveal some unknown aspect of his life.
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举一反三
【简答题】Whoever has skills should be properly rewarded___________(不管) his educational background.
【简答题】缺铁性贫血主要是指体内的哪些铁缺乏 ?
【简答题】授予专利权的条件是发明创造要具有______、创造性和实用性。
【单选题】Whoever has______ sense knows that smoking is harmful to people’s health.
A.
normal
B.
usual
C.
ordinary
D.
common
【简答题】输入一个 5 行、 6 列的数组,将每一行的所有元素都除以该行上绝对值最大的元素,然后输出该数组。
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