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【单选题】
有关全文数据库的特点以下说法错误的是( )A.
多数全文数据库都有超时控制的功能
B.
所有的全文数据库都支持“全文”字段检索
C.
全文数据库中的原文需要使用全文阅读器
D.
包括期刊论文、学位论文、会议论文等多种形式的文献
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【简答题】Which of the following is responsible for the rapid economic growth in the US? ［A］ Domestic consumers. ［B］ Foreign investments. ［C］ Real estate market. ［D］ Recovering bond market.
【单选题】According to the passage, as the corona rays reach the planets, they become______.
A.
darker
B.
weaker
C.
cooler
D.
clearer
【简答题】Imports maintained rapid growth, but export growth rate was smaller than that of GDP.
【单选题】According to the passage, as the corona rays reach the planets, they become ______.
A.
clearer
B.
cooler
C.
weaker
D.
darker
【简答题】What can bring about the rapid growth of population in America?
【单选题】which of the following is not mentioned as the way the corona virus transmits?
A.
something contaminated with virus
B.
cough or sneeze
C.
handshake
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