问题
单项选择题
At（）an occasional survey has been carried out.
A.the remind of the master
B.the refer of the master
C.the render of the master
D.the request of the master
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
At（）an occasional survey has been carried out.
A.the remind of the master
B.the refer of the master
C.the render of the master
D.the request of the master
参考答案：D
