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【单选题】
The teacher asked us_______ in deep waterA.
don’t swim
B.
not swim
C.
not swimming
D.
not to swim
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【单选题】False Fear of Big Fish Many people believe sharks (鲨鱼) are dangerous and will always try to hurt or even kill humans.____________(46). A shark exhibition at the National Aquarium (水族馆) in Baltimore, U...
A.
They can watch them develop inside their eggs and feel the skin of the older swimmers.
B.
A shocking 100 million sharks are killed every year around the world by humans.
C.
In fact, 94 per cent of the world's 400 species are harmless to humans.
D.
It is a worrying situation and some areas have put measures in place to, protect these special fish.
E.
And to make this point clear, the museum has set up a special touching pool for children.
F.
More than half of the sharks caught are smaller than 1 metre long. 第 46 题 请选择（46）处的最佳答案．
【简答题】1986年1月28日和2003年2月1日，美国先后发生两次航天飞机空中解体飞行事故，分别是____和____航天飞机。 A.挑战者号 B.哥伦比亚号 C.暴风雪号 D.发现号
【简答题】当 80C51 的 RST 引脚上保持 个机器周期以上的低电平时, 80C51 即发生复位。
【简答题】当 80C 51 的 RST 引脚上保持( )个机器周期以上的高电平时, 80C 51 即发生复位。
【单选题】False Fear Of Big Fish Many people believe sharks（鲨鱼）are dangerous and will always try to hurt or even kill humans．_______（1） A shark exhibition at the National Aquarium（水族馆）in Baltimore，us，proves thi...
A.
They Call watch them develop inside their eggs and feel the skin of the older swimmers
B.
A shocking 100 million sharks are killed every year around the world by humans．
C.
In fact，94 percent of the world’s 400 species are harmless to humans
D.
It is a worrying situation and some areas have put measures in place to protect these special fish．
E.
And to make this point clear，the museum has set up a special touching pool for children．
F.
More than half of the sharks caught are smaller than l meter long． 第 1 题 请选择（1）处的最佳答案．
【简答题】A．More people come to enjoy museums. B．More people fear to experience new things. C．Many old people are puzzled by modern exhibits. D．Many children are addicted to the displays.
【多选题】1986年1月28日和2003年2月1日,美国先后发生两次航天飞机空中解体飞行事故,分别是____和____航天飞机。
A.
挑战者号
B.
哥伦比亚号
C.
企业号
D.
发现号
E.
暴风雪号
【多选题】1986年1月28日和2003年2月1日,美国先后发生两次航天飞机空中解体飞行事故,分别是____和____航天飞机。
A.
挑战者号
B.
哥伦比亚号
C.
暴风雪号
D.
发现号
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