单选题:In the advanced course students take performance tests at monthly ___.
问题描述:
单选题:In the advanced course students take performance tests at monthly ___.
选项:
a、gaps
b、intervals
c、length
d、distance
答
b、intervals
根据中文意思:在进阶课程上,学生们每月都要进行技能测试.
可知这里需要一个表示时间间隔的词
interval
n.[C]
间隔;距离[(+between)]