问题:填空题该同学得出“小磁针转动肯定是因为受到力的作用”的结论,其依据是____;
Wednesday, September 6, 2023
问题:单选题当今,我国周边特别是( )安全面临的现实威胁呈上升趋势。A 陆地方向B 海上方向C 空中方向
Monday, September 19, 2022
问题:单选题A thoughtsB failureC questionsD problems
Friday, July 21, 2023
问题:单选题若向量a=(x,2),b=(-2,4),且a,b共线,则x=( ).A -4B -1C 1D 4
Tuesday, September 20, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:多选题社会主义核心价值观倡导的爱国、敬业、诚信、友善,明确了( )层面的价值准则。A国家B社会C公民个人
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:问答题It’s polite to keep our voice down in public.
Thursday, September 22, 2022
Saturday, September 17, 2022
问题:填空题某个单色光源每秒发射4.5×1017个频率为5.0×1014Hz的光子,这个光源的发射功率是____W.
Tuesday, September 20, 2022