考博考试

【单选题】 There are still some ______ for students of science and engineering, but those in arts and humanities have been filled.
A．positions
B．vacancies
C．applications
D．categories

网考网参考答案：B
网考网解析：
position职位，位子。vacancy(职位)空缺，空职。category种类，范畴。application请求，申请。 查看试题解析出处>>