题目内容

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.

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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。

在300K 的常压下, 2mol的某固体物质完全升华过程的体积功W= 。

1、一定量的某种理想气体从 同一始态T1,p1,V1出发,经绝热可逆过程膨胀至T2,p2,V2,和反抗恒定外压p2绝热膨胀至T2’,V2’,则T2’()T2,在数值上W(不可逆)()W(可逆)。

A. >;>
B. <;>
C. >;<
D. <;<

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