【单选题】【消耗次数:1】
As man moves into the space age, the study of biological rhythms is of increasing____________ to travellers, pilots, the armed forces and astronauts.
importance
important
importantly
import
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【判断题】 答题说明:句子没有语法错误请选择“正确”,有语法错误请选择“错误”As man moves into the space age, the study of biological rhythms is of increasing important.
①  正确
②  错误
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