题干
---Have you ______ some new ideas?
--- Yeah, I’ll tell you later.
--- Yeah, I’ll tell you later.
A：come about
B：come into
C：come up with
D：come out with
答案(点此获取答案解析）
C
殖脱毒的种苗，以保证该品种的品质和产量水平。这种通过分生组织离体培养获得种苗的过程不涉及细胞的（ ）