一辆客车夜晚行驶在公路上，发现汽油泄漏，车厢里充满了汽油的气味，这时首先应该采取的应急措施是（ ）
A．开灯查找漏油部位
B．洒水降温，溶解汽油蒸气
C．让车内的人集中到车厢后部
D．打开所有车窗，严禁烟火，疏散乘客
A、车厢里充满了汽油的气味说明车厢中有汽油蒸气，汽油有可燃性，与空气混合后遇明火或电火花会发生爆炸，而开灯时可能产生电火花可能会发生爆炸，，故A错误；
B、汽油难溶于水，洒水不会溶解汽油蒸气，故B错误；
C、为防患于末然，在汽油还没有燃烧时要紧急疏散而不是集中，故C错误；
D、打开车通风可降低可燃物的温度，使它达不到着火点，严禁一切烟火可防止汽油的温度可燃达到着火点，疏散乘客能使乘客摆脱险境，故D正确．
故选D．
| 完形填空。 | |||
| A boy was walking in the street __1__ a man came over __2__ him and __3__ him the way __4__the station. The boy was very naughty（顽皮的）. He wanted __5__ play a joke on the man. He pointed to __6___ side of the road and said, “Go down the street until you reach a shop. You can find it on your left.” The man thanked him and went away. A few minutes __7__the man came back. He said to boy that there was only a bookshop there and he __8__ find the station. The boy __9__ and said, __10__a map in the bookshop, and you’ll find the way!” | |||
| ( )1. A. but ( )2. A. from ( )3. A. ask ( )4. A. to ( )5. A. to do ( )6. A. another ( )7. A. before ( )8. A. can’t ( )9. A. cried ( )10. A. Buy | B. because B. to B. asked B. for B. to B. the other B. after B. may not B. smiled B. Carry | C. then C. for C. tell C. at C. show C. one more C. past C. couldn't C. run C. Show | D. when D. with D. told D. in D. to show D. two D. later D. mustn’t D. angry D. Borrow |