有这么一道题，我不是很能理解：-- Professor Li is wanted on the phone. Where is he?-- I saw him coming, but in a minute, he _____.这里为什么要用disappeared，不能用has disappeared。为什么不能用现在完成时表示他已经不见了，强调对现在的影——他现...
...tabases of faces ,and tested a variety of facial-recognition algorithms as they scaled up in complexity.其中scale up我只查到了scale sth up，scale作vt，这里是什么用法。2//Algorithm that were right 95% of the time when they were dealing with a 13000-image databases ,for example, were...
The 10th year of online shopping inChinaIn 2009, 3G network technology ___61___ (put)into commercial use.China’s mobile Internet users increased by 120 million in this year, ___62___ is highly concerned by theinternational community. The number of online___63___ (shop) was over 100 million. On No...
What Chekhov provides in Platonov is a tragi-comic portrait of the superfluous man：in this case an articulate schoolteacher whose volatile despair proves fatally attractive to women.我是这样理解本句话的，an articulate schoolteacher 是冒号前面句子的同位语，whose引导定语...
Critics have long argued
that it is only a copy of a Rubens original that is known to have been painted
between 1608 and 1609 for his Antwerp sponsor Nicolaas Rockox which then
vanished after his death in 1640. Then it was not until in 1929 when it appeared
again. 出自一篇高中的阅读理解...
Moreover, it is unclear how groups should be classified that are hunter-gatherers intheir procurement strategies but that make use of pastoralism and cultivation intheir consumption patterns---subsisting.请问老师 that are hunter-gatherers如何理解？ 我的理解是 it是形式主语...
If
that’s hard to understand, let’s keep it as simple as the arugula at the back
of my refrigerator. Mike Curtin sees my arugula story
all the time — but for him, it’s more like 12 boxes of donated strawberries
nearing their last days. Curtinis CEO of DC Central Kitchen in Washington,
D.C.,...
...、有些形容词常与某些介词短语搭配，作后置定语。如：The leaders present
at the meeting totaled eight.出席会议的领导共有八人。Thisis a subject worthy
of careful study.这是一个值得仔细研究的问题。另外，有些形容词 (表语形容词除外) 与介...
句子：All this may help explainthe government’s surprising embrace of private charity, not something people are supposed to need in a proletarian paradise.请问，这里的not something到底是什么成分? 是否是加了否定词的同位语，修饰private charity?又或=which is not some...