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【单选题】
灭火用的二氧化碳通常是以（）态灌装在耐压刚瓶内的。A.
气
B.
固
C.
液
D.
混合
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皮皮学刷刷变学霸
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【简答题】The centers for disease control and prion CDC, the expert body on corona virus, has released 1 for general public and healthcare professionals on the 2 of the virus. A person could be at risk if ...
【单选题】Why has adult education become popular?
A.
Because many old people are changing their professions.
B.
Because some people are looking for better jobs.
C.
Because they have high costs for repairs and advanced technology.
D.
All of the above.
【单选题】He told a story about his sister who was in a sad ______ when she was ill and had no money.
A.
plight
B.
polarization
C.
plague
D.
pigment
【单选题】下列各句中，没有语病的一句是( )。
A.
银行对申请贷款购车的客户的还贷能力的核查，是决定发放贷款的一项重要内容。
B.
这两起走私案件，不仅数额巨大，而且长期作案，竟一直没有被发现。
C.
垃圾车清理垃圾时不熄火，长时间发出噪声和废气，对住户的身心影响很大。
D.
刚刚结束的全国“文代会”要求：文学创作无论在思想内容或艺术表现上，都要力求创新。
【简答题】给出有7个控制顶点的3次分段Bezier曲线的节点序列。
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