• 2022-07-27
    下面哪些句型,通常被用来引出研究问题?
    A: While XYZ is well documented, it remains unclear whether/why...
    B: Despite a large body of evidence for XYZ, the detailed mechanisms for ... remain to be elucidated.
    C: However, it remains to be investigated whether...
    D: However, it remains to be investigated whether...