贯穿克拉拉的演奏生涯的曲目有() ["贝多芬的《月光曲》","巴赫的赋格曲","勃拉姆斯的作品","B和C"]
向心轴承的直径系列代号(新标准)用O,l,2,3,4,5,8,9,()表示。 ["7","6","10","11"]
ISSN是()的英文简称。 ["中国标准刊号","国内统一刊号","国际标准连续出版物号"]
健身健美操属于()。 ["有氧运动","减肥运动","健美运动"]
采用叶片桨距角异步变化的独立变桨距系统,是因为() ["可减小风力机叶片负载波动","可减小转矩波动","可减小传动机构的疲劳度","可减小塔架振动"]
边际效用