RNC间重定位又分为入RNC重定位和出RNC重定位，因此RNC重定位成功率计算方法是不同的。
参考答案：对
She was once trained for better English pronunciation and ________ she ________ obvious pronunciation mistakes.
A．then; rarely has made
B．ever since; has rarely made
C．then; has rarely made
D．ever since; rarely has made
基座阶地
