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[单选题]The instructor failed the student because of his sporadic attendance record. Occasional attendance in class was unacceptable to the teacher.VIR答案窝(daanwo.com)-大学生作业答案及考资分享平台
"sporadic" means ( ).VIR答案窝(daanwo.com)-大学生作业答案及考资分享平台
AacceptableVIR答案窝(daanwo.com)-大学生作业答案及考资分享平台
BinfrequentVIR答案窝(daanwo.com)-大学生作业答案及考资分享平台
Cfailure

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