题目内容：
The professor needs an assistant he can _ to take care of problems in his absence.A.count in B.count up
C. count on D. count out
参考答案：
选择题：The professor needs an assistant he can _ to take
- 题目分类：西安交通大学-土木工程-英语
- 题目类型：选择题
- 查看权限：VIP
A.count in B.count up
C. count on D. count out