请问这句话的语法正确吗?To identify the two substances, which are chosen

请问这句话的语法正确吗?
To identify the two substances, which are chosen randomly amongst six white powders, by carrying out a range of experiments. 如有语病请予以纠正,谢谢各位大虾了...
不好意思,没粘贴全。这是个化学报告,开头原句是这样的
Aim:To identify the two substances, which are chosen randomly amongst six white powders, by carrying out a range of experiments.
西域刀客0小宝 1年前 已收到2个回答 举报

5252pk 幼苗

共回答了26个问题采纳率:84.6% 举报

可改为:
To identify the two substances,which are chosen randomly amongst six white powders,a range of experiments has been carried out.

1年前

8

ywtawj 幼苗

共回答了2个问题 举报

句子主语没了?by carrying改成carry吧

1年前

0
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