比x多20的数是5的多少倍?
(x+20)÷5
=x5+4
答:比x多20的数是5的x5+4倍.
---Do you mind choosing Peter to be the new chairman?
----_______.
A.Of course. He is the best choice.
B.Certainly not. We can’t find a better one.
C.Yes, I do. He is the most suitable person
D.No, I don’t. I don’t think he is the suitable person.
针对学困生的诊断性评价多半是在()实施。
A.教学过程中
B.形成性评价之后
C.形成性评价之前
D.教学过程之后