题目内容
BPollution (污染)Hundreds of years ago, life was much harder than it is today. People didn’t have modern machines. There was no modem medicine, either.Life today has brought new problems. The biggest one is pollution. Water pollution has made our rivers and lakes dirty. It kills our fish and pollutes our drinking water. Noise pollution makes us talk louder and become angry more easily. Air pollution is the most serious kind of pollution. That’s bad to all living things in the world.Cars, planes and factories all pollute our air every day. Sometimes the polluted air is so thick that it is like a quilt (被子) over a city. This kind of quilt is called smog (烟雾).Many countries are making rules to fight pollution. Factories must now clean their water before it is thrown sway. They mustn’t blow dirty into the air.We need to do many other things. We can put waste things in the dustbin (垃圾箱) and not throw it on the ground. We can go to work by bus or with our friends in the same car. If there are fewer people driving, there will be less pollution.Rules are not enough. Every person must help to fight pollution. What is the biggest problem in today’s life（）
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J、K、L、M、N、O、P和R八个人将被分成x和Y两队参加接力赛，每组四个人。该接力赛要连续跑四圈。两队的比赛同时进行，每个队的每个成员恰好跑一圈，且满足以下条件：(1)J和K在同一队；(2)K和N不在同一队；(3)不管R和P是否在同一队，R都在P的前面跑；(4)M和N都在Y队；(5)J和M都不跑第三圈；(6)K和L都跑第二圈；(7)o跑第四圈。 若R和P被分配到同一队中，则下面哪一项一定正确
We often hear the (21) "Bug" while using computers. But what is a bug In computer science, a bug (22) an error in software or hardware. In software, a bug is an error in coding or logic that causes a program to malfunction or to (23) incorrect results. Minor bugs, for example, a cursor that does not behave as (24) -can be inconvenient or frustrating, but not damaging to (25) More severe bugs can cause a program to "hang" (stop responding to (26) and might (27) the user with no (28) but to restart the program, losing whatever (29) work had not been saved. In (30) case, the programmer must find and correct the error by the (31) known as debugging. Because of the (32) risk to important data, commercial aplication programs are tested and (33) as completely as possible before release. Minor bugs found after the program becomes (34) are corrected in the next update; more (35) bugs can sometimes be fixed with special software, called patches, that circumvents or otherwise (36) its effects.In hardware, a bug is a recurring (37) problem that prevents a system or set of (38) from working together properly. The (39) of the term reputedly goes back to the early days of computing, when a hardware problem in a computer at Harvard University was (40) to a moth caught between the contacts of a relay in the machine. 28().
词语替换：今年的研究生考试要办理许多[繁琐]的手续。( )
11×40+39×48+8×11的值是( )
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