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【简答题】
在埃里克森看来, 阶段的儿童人格发展要处理的三对主要矛盾是信任对不信任,自主对羞怯, ( )。
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举一反三
【单选题】Mycoplasmas, rickettsiae, and chlamydiae are
A.
types of fungi
B.
small bacteria
C.
species of protozoa
D.
forms of viruses
【判断题】Mycoplasmas are organisms without cell walls, and can easily revert to walled organisms.
A.
正确
B.
错误
【单选题】The wall-less mycoplasmas are considered to be related to gram positive bacteria. Which of the following would provide the most compelling evidence for this?
A.
They share common rRNA sequences.
B.
Some gram-positive bacteria and some mycoplasmas produce catalase.
C.
Both groups are prokaryotic.
D.
Some gram-positive bacteria and some mycoplasmas have coccus-shaped cells.
E.
Both groups contain human pathogens.
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