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THe out membrane of Gram negative cell wall is symmetric bilipid layer.

A. 对
B. 错

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THE specific polysaccharide of lipopolysaccharide is called O-antigen of bacteria.

A. 对
B. 错

lipid A is specifically found in the outer membrane of cell wall of Gram positive bacterium.

A. 对
B. 错

The periplasmic space is present not only in the cell wall of Gram+ bacteium but also inthe cell wall of Gram - bacterium.

A. 对
B. 错

吸上线电缆沿地面、支柱的敷设必须密贴、牢固。埋入地下时,埋深不少于 ____mm。穿过钢轨、桥台时应采取防护措施。

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