公共英语考试

【单选题】Many years ago, life was (41) than it is today. People didn’t have modern machines. There was no modern medicine, (42) .
Life today has brought new problems. One of the biggest is pollution (污染). Water pollution has (43) our rivers and lakes dirty. It kills fish and affects (影响) our drinking water. Noise pollution makes us talk louder and (44) .Air pollution is the most serious kind of pollution. It affects (45) living thing in the worlD、
Cars, planes and factories all pollute our air every day.
Many countries are making laws (法律) to stop pollution. Factories, must from now on, clean their water (46) away, they mustn’t sent out dirty smoke into the air.
We need to do many other things. We should put waste things in the dustbin (垃圾箱) (47) throwing them on the grounD、We can go to work by bus (48) with our friends in the same car. If (49) people driving, there will be (50) pollution.
A．before it is thrown
B．after it is thrown
C．until it is thrown

网考网参考答案：A
网考网解析：
[解析] 根据句意“许多国家制定法律用来阻止污染，从现在开始，一些TV在排除污水之前，必须对它们进行有效的清除”。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>