| 考博易错题（2018/7/7） |
| 第1题： Mercury is the nearest planet to the sun and its period of ______ is 88 days. A．movement B．evolution C．return D．revolution |
| 【单选题】： |
| 第2题：Colour-blind people often find it difficult to ______ between blue and green.
A．separate B．compare C．distinguish D．contrast |
| 【单选题】： |
| 第3题： Now, don't tell anyone else what I've just told you. Remember, It's ______. A．controversial B．secretive C．confidential D．sacred |
| 【单选题】： |
| 第4题： (Although) the wages for all the members of the working staff (increase regular), so (their expenses do); for the prices for everything (are increasing dramatically) at the same time. A．Although B．increase regular C．their expenses do D．are increasing dramatically |
| 【单选题】： |
| 第5题：What we consider a luxury at one time frequently becomes a ______; many families find that ownership of two cars is indispensable.
A．fashion B．necessity C．proclivity D．nuisance |
| 【单选题】： |