David is a skillful worker. I’m sure he has enough to fix all the electronic .A. experien

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(答案→)A. experience; equipment
B. experience; equipments
C. experiences; equipment
D. experiences; equipments
解析：考查名词：句意：大卫是个熟练的工人，我确信他有足够的经验来安装所有的电子设备。Experience做“经验”讲是不可数名词，做“经历”讲是可数名词，equipment“设备”是不可数名词，选A。