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: ABC is a main mechanism used by all vertebrate to ...
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: ABC is a main mechanism used by all vertebrate to ...
举一反三
- 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...
- 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, its detailed mechanisms remain to be elucidated. C: However, it remains to be investigated whether... D: ABC is the main mechanism used by all vertebrates to achieve XYZ.
- 中国大学MOOC: 下面哪些句型，通常被用来引出研究问题？
- Whether or not the new plan will yield any positive results____to be seen. A: remain B: is remained C: remains D: have remained
- It remains ______whether or not she was lying. A: seen B: to be seen C: seeing D: to see