The professor needs an assistant that he can to() take care of problems in his absence.
A.count in
B.count up
C.count on
D.count out
出自:河南理工大学专升本英语1

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块