重大项目和技术复杂项目,工程设计工作一般划分为()。A.扩大初步设计阶段 B.方案设 发布时间:2017-02-25 03:07 │ 来源:www.tikuol.com 题型:多项选择题 问题: 重大项目和技术复杂项目,工程设计工作一般划分为()。A.扩大初步设计阶段B.方案设计阶段C.初步设计阶段D.施工图设计阶段E.技术初步阶段
题型:多项选择题 Escaping a fire is a serious matter. If you know what to do during a fire, you can __1__ a life. It is important to know the ways you can use and __2__ them to everyone in the family, such as stairs and fire escapes(安全出口). You shouldn’t take lifts. From the lower floors of the building, escape __3__ windows is possible. Let’s learn the best way of leaving by window with the least chance of serious injury(受伤). The first floor window is usually not very high from the ___4____ . It is about the height of a man. Of course, it is safer to jump a short way than stay in a burning building. Windows are also very useful when you are___5___ for help. Be sure to keep the door ___6__ before opening the window. If we don’t do that, ___7__and fire may come into the room. Keep your head low at the window to be sure you get__8__ fresh air instead of smoke. On the second or third floor, the best windows for escape are those __9____open onto a roof. From the roof a person can drop to the ground more __10____ .Dropping onto the cement(水泥地) might end in injury. Trees and grass can help to break a fall.小题1:A.helpB.makeC.saveD.give小题2:A.speakB.takeC.showD.say小题3:A.outB.throughC.intoD.on小题4:A.roofB.earthC.landD.ground小题5:A.needingB.doingC.wantedD.waiting小题6:A.openB.closingC.openingD.closed小题7:A.firemenB.windC.waterD.smoke小题8:A.enoughB.littleC.a fewD.few小题9:A.whoB.whatC.whichD.where小题10:.A.dangerously B.easyC.safelyD.carefully 查看答案
题型:多项选择题 反应X(g)+Y(g) 2Z(g) ΔH<0,达到平衡时,下列说法正确的是( )A.减小容器体积,平衡向右移动B.加入催化剂,Z的产率增大C.增大c(X),X的转化率增大D.降低温度,Y的转化率增大 查看答案