______ (当涉及对心脏病及其对身体的影响的研究时), we do not have adequate substitutes for the use of

游客2023-09-10 28

问题 ______ (当涉及对心脏病及其对身体的影响的研究时), we do not have adequate substitutes for the use of animals.

选项

答案 When it comes to researches into heart disease and its effects on the body

解析本题测试句式when it comes to... 和后面几个词语research into，effects on的用法。

转载请注明原文地址:https://tihaiku.com/zcyy/3003067.html

相关试题推荐

随机试题

最新回复(0)

(据研究人员统计)______,Europe’spopulationwillcontinuetodeclinefordecades.Acco