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【单选题】
与细菌相比,病毒特有的性状变异是:A.
毒力变异
B.
抗原变异
C.
空斑变异
D.
抵抗力变异
E.
耐药性变异
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反馈参考答案：
举一反三
【单选题】What does Bernard think of his daughter’s new job?
A.
Favourable
B.
Neutral
C.
Unfavourable
【单选题】They _______Sally and Bob. Sally _______my cousin.
A.
are, am
B.
are, is
C.
are, are
D.
is, is
【单选题】What does CNG mean?
A.
Compressed Natural Gas
B.
Comprehensive Natural Gas
C.
Comprehensive Neutral Gas
D.
Compressed Neutral Gas
【单选题】What does “Neutral” mean according to the article?
A.
The business neither supports nor hinders its employees.
B.
The type of business.
C.
Company’s personnel management.
D.
Ways of classifying corporate environments.
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