补写下列名句中空缺部分 ①君子坦荡荡, 。 ② , ,颁白者不负戴于道路矣。(《王好战,请以战喻》
I the saxophone at regular intervals for many years when I was a child. A.played B.was playing C.has played
已知=(2,1), =10, =,则= ( ) A. B. C.5 D.25
—Who’s the little baby in the photo, Li Ying? —It’s me. This photo _______ fourteen years ago. A. is taken B. took C. takes D. was taken
1 won’t call you, ________ something unexpected happens. A. unless B. whether C. because D. while
均匀带电的球壳在球外空间产生的电场等效于电荷集中于球心处产生的电场.如图所示,在半球面AB上均匀分布正电荷,总电荷量为q,球面半径为R,CD
下图中P地常年受某风带的影响,读图完成31— 32题。 31、图中P所处风带是( ) A东北信风 B西风带 C极地东风带
邓小平曾说:“只要我国经济中公有制占主体地位,就可以避免两极分化。”下列选项中对公有制主体地位的正确理解有 ( )