身高1.45m的晶晶同学站在直立的平面镜前2m处,看到镜中自己的像,则他的像距他 发布时间:2017-05-16 10:39 │ 来源:www.tikuol.com 题型:填空题 问题: 身高1.45m的晶晶同学站在直立的平面镜前2m处,看到镜中自己的像,则他的像距他______m.当他走近镜子时,镜中的像将______(填“变大”、“变小“或“不变”)
题型:填空题 Ever since that political congress last year took many effective measures to develop economy, great changes of peo ple’s life have .A.came to power; taken placeB.came to power; been taken placeC.coming to power; been taken placeD.coming to power; taken place 查看答案
题型:填空题 代谢性酸中毒,无代偿形成见于()A.糖尿病患者血气分析,pH、HCO-3及BE均明显降低,PCO2明显降低B.糖尿病患者血气分析,pH、HCO-3及BE均明显降低,PCO2增高C.糖尿病患者血气分析,pH、HCO-3及BE均明显降低,PCO2降低不明显D.糖尿病患者血气分析,pH正常,HCO-3及BE均明显降低,PCO2明显降低E.糖尿病患者血气分析,pH降低,HCO-3及BE正常,PCO2增高 查看答案