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【单选题】
高速铁路，简称“”。据悉，中国目前已经拥有全世界最大规模以及最高运营速度的高速铁路网。中国高速铁路运营里程约占世界运营里程的45%，稳居世界里程榜首。给人民生活、经济发展带来了巨大的改变。这表明（） ①事物的联系是普遍的 ②自在事物的联系是客观的 ③事物的联系是人为的 ④人为事物的联系是客观的A.
①②
B.
②③
C.
①④
D.
③④
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【单选题】中国药典规定，“精密称定”系指称取重量应准确至
A.
所取重量的1/100
B.
所取重量的1/10
C.
所取重量的1/1000
D.
所取重量的1/10000
E.
准确到小数点后第四位
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【单选题】---Is Mr Smith still in Shanghai? ---Yes，he _______there for two months．
A.
has been
B.
has gone
C.
has been to
D.
has gone to
【单选题】Sleepless at Night It was a normal summer night. Humidity (湿气) hung in the thick air. I couldn't go to sleep, partly because of my cold and partly because of my expectations for the next day. My mum h...
A.
it was too cold.
B.
it was too dry.
C.
he had a cold.
D.
he had a fever.
【单选题】Sleepless at Night It was a normal summer night. Humidity (湿气) hung in the thick air. I couldn't go to sleep, partly because of my cold and partly because of my expectations for the next day. My mum h...
A.
it was too cold,
B.
it was too dry.
C.
he hadacold.
D.
he hadafever.
相关题目：
【单选题】中国药典规定，“精密称定”系指称取重量应准确至
A.
所取重量的1/100
B.
所取重量的1/10
C.
所取重量的1/1000
D.
所取重量的1/10000
E.
准确到小数点后第四位
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