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JGJ144-2004 试件制备、养护和状态调节中规定:温度为 10 ~25°C,相对湿度不应低于50%,试样养护时间 d。
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【单选题】In ______, the only element that can be deleted or removed is the one that was inserted most recently.
A.
a line
B.
a queue
C.
an array
D.
a stack
【单选题】听力原文： The majority of people, about nine out of ten, are fight-handed. Up until recently, people who were left-handed were considered old, and once children showed this tendency they were forced to us...
A.
They thought them strange.
B.
They considered they were funny.
C.
They thought them clever.
D.
They considered they were creative.
【单选题】Laughter There is an old saying in English: 'Laughter is the best medicine'. Until recently, few people took the saying very seriously. Now, however, doctors have begun to investigate laughter and the...
A.
is good for one's health.
B.
is related to some illness.
C.
has been investigated long since.
D.
has no effect on the body.
【单选题】Laughter There is an old saying in English: 'Laughter is the best medicine'. Until recently, few people took the saying very seriously. Now, however, doctors have begun to investigate laughter and the...
A.
is good for one's health.
B.
is related to some illness.
C.
has been investigated long since.
D.
has no effect on the body.
【简答题】A．It's too late to join the soccer team B．The mans grades have begun to improve recently C．The man might not have enough time to play soccer D．The man should continue to improve his soccer skills
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