What tissue is the primary site for meningococcal pili to adhere to?
A. endocervix,
B. nasapharynx,
C. meninge,
D. ciliated cells
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What statement is not right about meningococcal infection?
A. It invades blood to cause septicemia.
B. It causes meningitis,
C. It causes hemorrhagic lesion in skin,
D. It infects mininge via wound in brain.
Which is not right about diagnosis of meningitis?
A. Lumbar puncture is used to collect cerebrospinal fluid is applied.
B. Gram-negative diplococci in phagocytes of cerebrospinal fluid
C. Examination with microscope is very useful to search meningococcus in sample.
D. Gram-positive diplococci in phagocytes of sputum.
Which statement is not right about meningococcus?
A. It is dipococcus
B. It is Gram negative
C. It is found in neutrophiles in the specimen fron CSF.
D. It has flagellum, capsule and spore
在300 K的常压下， 2 mol 的某固体物质完全升华过程的体积功W = () kJ。一定量单原子理想气体经历某过程的△（pV）= 20 kJ，则此过程的△U=（）kJ； △H=（）kJ。系统内部及系统与环境之间，在（）过程，称为可逆过程。
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