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【简答题】
From the West Lawn, Thomas Jefferson, family, and guests could walk up the on the West Portico to reach the Parlor, one of three rooms in Monticello that were part of Jefferson’s plan for the home in 1769. The Parlor was a public room, for conversation, music, games, and reading. Jefferson wrote that music “furnishes a delightful for the hours of respite from the cares of the day, and lasts us through life.” The Parlor was the for many of these hours of “delightful recreation.” Jefferson himself played the and his wife, daughters, and granddaughters played several , including the piano, harpsichord (大键琴), and guitar. Jefferson’s namesake grandson, Thomas Jefferson Randolph, recalled that before his grandfather “lost his for the violin, he would play on it, having his children dancing around him. ”
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【单选题】计算机病毒产生的原因是( )。
A.
用户程序有误
B.
计算机硬件障碍
C.
计算机系统软件有误
D.
人为制造
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A.
B.
C.
D.
E.
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A.
B.
C.
D.
E.
【判断题】先测定高浓度试液的吸光度,后测定低浓度试液的吸光度
A.
正确
B.
错误
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A.
索耶式直线步进电动机
B.
永磁式步进电动机
C.
反应式步进电动机
D.
混合式步进电动机
【多选题】小儿五脏六腑之功能皆属不足,其中尤其突出的是( )
A.
B.
C.
D.
E.
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A.
正确
B.
错误
【单选题】计算机病毒产生的原因是()
A.
用户程序有错误
B.
计算机硬件故障
C.
计算机软件系统有错误
D.
人为制造
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A.
正确
B.
错误
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