单选题
发布日期:2021-03-22
scavenging air ports;exhaust ports
inlet ports;scavenging air ports
scavenging air ports;inlet ports
exhaust ports;inlet ports
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以人为例,简述碱基切除修复机制。
在计算机系统中,操作系统是()。
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血液与组织液之间进行物质交换的场所为()
某涂料厂生产氯化钡车间发生爆炸,生产工李某,男,26岁,既往体健,在救出3名工友后,觉出现头晕、恶心、呕吐、胸闷、心悸、麻木感、无力等症状而就诊,患者双上肢皮肤及衣物沾满了粉末。急诊时为明确诊断必须优先做哪些检查()。
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