题干
—This physics problem is too difficult. Can you show me _______, Li Lin?
—Of course.
A：what to work it out
B：what to work out it
C：how to work it out
D：how to work out it
答案(点此获取答案解析）
C
O2)，丙氨酸(C3H7NO2)。则翻译该多肽时mRNA中至少有多少个碱基