Organolithium Compounds and Their Application in Organic Synthesis
liang qiang 1; wang qian 1 ; wang jing-lin 2 ( 1.department of chemistry ; normal college ; qingdao university ; qingdao 266071; 2.department of chemistry ; jindongnan teachers college ; changzhi 046011)
Some Questions about Real Number Continuity
fan hui-ping and yan hui-huang (experimental high school; shanxi teachers university; linfen; 041004) (department of math; jindongnan teachers college; changzhi; 046011)