国家标准规定：对燃油、气锅炉，氮氧化物的允许排放质量浓度不得超过（）。A、1200m 发布时间：2017-10-19 13:51 │ 来源：www.tikuol.com 题型：单项选择题 问题： 国家标准规定：对燃油、气锅炉，氮氧化物的允许排放质量浓度不得超过（）。A、1200mg/m3B、500mg/m3C、400mg/m3D、100mg/m3
题型：单项选择题 辨析填空。 situation / condition / state 1. All the equipment provided for the work must be in good _____ and good working order.2. At that time, the whole country was in a _____ of war.3. When you get there, have a look of the _____ and decide what to do. set up / build / found / put up 4. We must _____ a world with more partners and fewer adversaries. 5. This country was _____ on the principle of individual freedom for all.6. The primary school in that poor village was _____ in 2003 with the help of some kind people. 7. They _____ a tent when they go there. prevent / protect 8. Firemen must carry breathing equipment to _____ themselves from the smoke. 9. Unless we get more funding we'll be _____ from finishing our experimental program. 查看答案
题型：单项选择题 关于前列腺正常解剖，下列观点哪项不对（）A.MRI扫描，常能清晰显示前列腺段 * * B.CT横断面测量与前列腺实际大小一致C.分周边带、中央带、移行带D.良性增生，移行带多见E.前列腺癌，多起源于周边带 查看答案