以下表达“科学领域”的英语词汇是_______。
A、chemical principles
B、scientific fields
C、natural changes
D、chemical pollution
A、chemical principles
B、scientific fields
C、natural changes
D、chemical pollution
A、account for
B、the properties of substance
C、natural changes
D、chemical pollution
A、fundamental principles
B、chemical pollution
C、various mixtures
D、simple chemicals
A、toxic chemicals
B、chemical polution
C、natural changes
D、scientific fields
A、scientific fields
B、toxic substances
C、chemical polution
D、toxic chemicals
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