【判断题】标准频率的相对不确定度应该比±1误差引起的测频误差小一个量级。
【简答题】were the earliest known inhabitants of America.
【判断题】标准频率的相对不确定度应该比 ±1 误差引起的测频误差小一个量级。 US>±1误差的影响。
【单选题】The earliest known settlers on the British Isles were ___.
【判断题】Zuo’s Commentary on the Spring and Autumn Annals was the earliest known narrative history of China.
【单选题】大事先知道、培训先参加、意见先征求,是党员激励机制中的( )激励。
【单选题】The earliest known native language of England is ________________________.