用95牛顿米的检查护顶架与挡货架固定螺栓架是否松动。（ ）
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Each statement is right about spirochete EXCEPT ___.
A. It is Gram-negative bacteria.
B. It is thin, tightly coiled, helically shaped.
C. It can corkscrew and burrow through their hosts’ tissues.
D. Its axial fimbria can rotate.
Which one does not belong to the group of spiral bacterium?
A. Vibrio cholera;
B. Helicobacter pylori
C. Psuedomonads ;
D. Treponema palidum;
Each statement is right about T. pallidum EXCEPT ___.
A. It is visualized by silver stain method.
B. It can grow into colony in bloody agar plate.
C. It is thin, tightly coiled, helically shaped.
D. It is Gram-negative bacteria.
The disease caused by T. pallidum is _____.
A. enteritis;
B. syphilis;
C. urethritis;
D. gonorrhea
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