人民代表大会是我国的权力机关，依法行使立法权、监督权、决定权和批评建议权。
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人民民主专政的社会主义国家，这是我国的国体。
A. 对
B. 错
Which one is not found in the structure of meningococcus?
A. pili
B. capsule
C. LPS
D. Flagellum
Each statement is right about meningococcus EXCEPT ___?
A. Teichoic acid mediate adherence.
B. Capsule and pili are present
C. It is Gram-negative,
D. They are bean-shaped coccus in pairs.
Which antigen is used to determine 15 serogroups of meningococcus?
A. Pili antigen
B. LPS antigen
C. capsule antigen
D. cell wall antigen
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