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IN    THE    BEDROOM Don’t smoke in bed ------it causes 1000 fires a year, many with fatal (致命的)results. Don’t overload your electrical points: the right way is “one appliance(电器), one socket”(插座). Don’t use an electric underblanket over you or an overblanket under you. An underblanket , unless of the low- voltage type, MUST be switched off before you get into bed. Never let furniture or clothing get close to a lighted fire. Make sure that there is a suitable guard for the room heater. Keep aerosol-type containers (喷雾器)away from heat and NEVER burn or puncture(刺穿)them. Don’t dim a table lamp by covering it: buy a low-wattage bulb(灯泡). Pajamas (睡衣)and nightdresses, especially for children and elderly people, should be made from flame- resistant material. IF  CUT   OFF BY  FIRE Close the door of the room and any fanlight or other opening and block up any cracks (缝隙)with bedding, etc. Go to the window and try to attract attention. If the room fills with smoke, lean out of the window unless prevented by smoke and flame coming from a room below or nearby. If you cannot lean out of the window, lie close to the floor where the air is clearer until you hear the fire brigade(队). If you have to escape before the fire brigade arrives, make a rope by knotting together sheets or similar materials and tie it to a bed or another heavy piece of furniture. If you cannot make a rope and the situation becomes intolerable(难耐的),drop cushions or bedding from the window to break your fall, get through the window feet first, lower yourself to the full extent of your arms and drop. If possible drop from a position above soft earth. If above the first floor, drop only as a last resort. 1. According to the instructions, fires in the bedroom can be caused by ________. A. one appliance, one socket B. smoking in bed C. underblankets, of the low- voltage type D. all of the above-mentioned points 2. In the bedroom, you are told _______. A. not to use an electric underblanket or an electric overblanket. B. to use an underblanket of the low-voltage type C. to switch off an underblanket of the low- voltage type D. not to use an electric underblanket over you 3. You should keep furniture or clothes away from a lighted fire because ________. A. the fire is too low B. furniture or clothes block light C. there is no guard in the room D. furniture or clothes catch fire easily 4. If you are cut off by fire, you should first ______. A. try to stop smoke from coming into the room B. lie down and wait for the fire brigade C. escape by jumping immediately out of the window D. close the window and call for help
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【多选题】游标卡尺读数时,下列操作不正确的是( )。
A.
(A)平拿卡尺
B.
(B)视线垂直于的读刻线
C.
(C)朝着有光亮方向(D)没有刻线完全对齐时,应选相邻刻线中较小的作为读数
【多选题】柴油机的主要排放污染物是( )。
A.
CO2
B.
HC
C.
NOx
D.
碳烟
【单选题】游标卡尺读数时,下列操作不正确的是( )。
A.
平拿卡尺
B.
视线垂直于的读刻线
C.
朝着有光亮方向
D.
没有刻线完全对齐时,应选相邻刻线中较长的作为读数
【单选题】游标卡尺读数是,下列操作不正确的是()。
A.
平拿游标卡尺
B.
视线垂直于的读刻线
C.
朝着有光亮方向
D.
没有刻线完全对齐时,应选相邻刻线中较小的作为读数
【单选题】游标卡尺读数时,下列操作不正确的是( )
A.
平拿卡尺
B.
视线垂直于的读刻线
C.
朝着有光亮方向
D.
没有刻线完全对齐时,应选相邻刻线中较小的作为读数
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A.
阻止病原微生物侵入机体
B.
抑制病原微生物在体内繁殖、扩散
C.
从体内清除病原微生物及其产物,保护机体生存的功能
D.
清除体内变性、损伤及衰老的细胞
E.
识别、杀伤与清除体内的突变细胞、防止肿瘤的发生
【单选题】游标卡尺读数时,下列操作不正确的是( )。
A.
平拿卡尺
B.
视线垂直于的读刻线
C.
朝着有光亮的地方
D.
没有刻线完全对齐时,应选相邻刻线中较小的作为读数
【多选题】下列关于全血说法哪些项是正确的()
A.
全血具有运输、调节、免疫、防御及凝血止血功能
B.
全血是指血液的全部成分
C.
全血维持细胞内外平衡和缓冲作用
D.
第Ⅴ因子保存3~5d无损失
E.
第Ⅷ因子在全血中保存24h后,活性下降50%
【简答题】柴油机的主要排放污染物是 、 、 。
【简答题】柴油机的主要排放污染物是()、()和()。
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