单选题As he has worked in&

问题补充：

单选题Ashehasworkedinthearmyasanelectricalengineerformanyyears,hehasevery____forthejob.fortC.qualificationD.quality

答案：

C解析考查词意辨析。have qualification for意为做...有资格; ability 能力；comfort舒适，舒服；quality质量。