【单选题】【消耗次数：1】
Not until the early years of the 19th century ____ what heat is.
①
man knew
②
did man know
③
man did know
④
didn’t man know
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随机题目
【多选题】
组织目标的功能主要体现在
①
组织目标是组织存在的合法化根据
②
组织目标是不同性质的组织相互区别的标准
③
组织目标为组织参与者之间的分工合作提供了基础
④
组织目标是衡量组织成员和组织活动成效的标尺
⑤
组织目标是相同性质的组织相互区别的标准