选择哪个?Children learn best by studying at their own______.A rate B speed C pace D growth
标准答案给的是A,rate.但是我觉得C,pace也可以.
我上网搜速了一下，好多地方都用的是
learn at their own pace.
在百度里打上learn at their own pace.就可以搜索出来一大堆。
但是learn at their own rate就搜索很少
我怀疑答案是不是不对。