For example, one explanation for why a cell may deliberately destroy itself is if its sacrifice lowers the viral load on closely related cells nearby. 经济学人最新一期的一句话，这个句子是由if引导的表语从句吗？
...urst is only five miles from Silbury, but Mr. Scott cannot get a telephone for his new garage, so he has just bought twelve pigeons. Yesterday, a pigeon carried the first message from Pinhurst to Silbury. The bird covered the distance in three minutes. Up to now, Mr.Scott has sent a great many reque...
I see people trapped in a pathological (病态的) relationship with
time-consuming technology, where they serve technology more than
technology serves them.横线上的空可以改成for吗？谢谢老师！
...出第二段:NBAC will ask that Clinton's 90-day ban on federal funds for human cloning be extended indefinitely, and possibly that it be made a law. But NBAC members are planning to word the recommendation narrowly to avoid new restrictions on research that involves the cloning of human DNA or ...
The UK's capital does have a
lot going for it. And whether you've never braved so much as a day-trip, or
even if you live here and want a change of scene, the launch of a new way to
travel, Hotel Week London, should catch your eye.The UK's capital does have a
lot going for it. And whether you've nev...
...语的修饰对象问题我有以下几点疑惑：1. new guidelines for tort law explaining several confusing points.其中explaining several confusing points是否与for tort law共同修饰new guidelines？理解为修饰for tort law有何不妥？2. coupled with the desire of...
...e minimum necessary to keep the Postal Service afloat, not comprehensive reform.“not comprehensive reform.”2.There’s no change to collective bargaining at the USPS, a major omission considering that personnel accounts for 80 percent of the agency’s costs. “a major omission considering that...