| 考博易错题（2017/11/1） |
| 第1题：Eventually the rarer genes will disappear and the genetic types, ______ leaving fewer offspring will become.
A．extinguished B．extraordinary C．extinct D．extreme |
| 【单选题】： |
| 第2题：They ______ themselves ______ the politician because they hoped he would become president one day.At last he diD、
A、connecteD、.. with B．combined ... with C．linkeD、.. up D．attacheD、.. to |
| 【单选题】： |
| 第3题： If the percentage of carbon dioxide in the air continues to increase at current rates______. A．average daily temperatures worldwide could increase considerably B．some sea level islands could be threatened by flooding C．all coastal regions throughout the world could be at serious risk D．all of the above |
| 【单选题】： |
| 第4题： The ambient noise imaging is able to locate the whales even when they are silent because ______. A．the whales may create detectable "sound shadows" B．the new sonar equipment is more powerful C．the new sonar technology can see through sea water D．the existence of whales may reinforce reflection signals |
| 【单选题】： |
| 第5题： When workers are organized in trade unions, employers find it hard to lay them______. A．off B．aside C．out D．down |
| 【单选题】： |