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【单选题】
设有正文AADBAACACCDACACAAD，字符集为A、B、C、D，设计一套二进制编码，使得上述正文的编码最短，其总码长为 。
A.
18
B.
144
C.
31
D.
36
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【单选题】it is a good idea to take a first-aid kit ______ there is an accident.
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in case
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in the event of
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【多选题】物流系统具有创造物品的( )。
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【简答题】Health Services on Train In China, all passenger trains have first kits and basic first aid training conductors to help people who don’t feel well. But commonly there is no nurse or doctor in the crew...
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【单选题】The sentence “But for your timely warning, I would have fallen into his trap.” expresses the speaker’s _____.
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【多选题】物流系统具有创造物品的( )效用
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B.
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【多选题】青海省矿产资源丰富,其中( )矿产全国第一。
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【单选题】"First aid is...open to human error" in the second paragraph means （）.
A.
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【多选题】物流系统具有创造物品的()效用
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【单选题】Always keep a first-aid kit in your home-just _____ there is an accident. [     ]
A.
in case
B.
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as though
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查看完整题目与答案
【多选题】青海省矿产资源丰富,其中( )矿产全国第一。
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【单选题】"First aid is...open to human error" in the second paragraph means （）.
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there are never failures in first aid
B.
medical care in first aid is essential
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human mistakes are possible in first aid
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first aid is widely applied to accidents
查看完整题目与答案