Archaeology as a profession faces two major problems. First, it is the poorest of the poor. Only paltry sums are available for excavating and even less is available for publishing the results (5) and preserving the sites once excavated. Yet archaeologists deal with priceless objects every day. Second, there is the problem of illegal excavation, resulting in museum-quality pieces being sold to the highest bidder. (10) Iwould like to make an outrageous suggestion that would at one stroke provide funds for archaeology and reduce the amount of illegal digging. Iwould propose that scientific archaeological expeditions and governmental (15) authorities sell excavated artifacts on the open market. Such sales would provide substantial funds for the excavation and preservation of archaeological sites and the publication of results. At the same time, they would break the illegal (20) excavator's grip on the market, thereby decreasing the inducement to engage in illegal activities. You might object that professionals excavate to acquire knowledge, not money. Moreover, ancient artifacts are part of our global cultural heritage, (25) which should be available for all to appreciate, not sold to the highest bidder. Iagree. Sell nothing that has unique artistic merit or scientific value. But, you might reply, everything that comes out of the ground has scientific value. Here we part company. (30) Theoretically, you may be correct in claiming that every artifact has potential scientific value. Practically, you are wrong. I refer to the thousands of pottery vessels and ancient lamps that are essentially duplicates of (35) one another. In one small excavation in Cyprus, archaeologists recently uncovered 2,000 virtually indistinguishable small jugs in a single courtyard. Even precious royal seal impressions known as I'melekh handles have been found in abundance (40) —more than 4,000 examples so far. The basements of museums are simply not large enough to store the artifacts that are likely to be discovered in the future. There is not enough money even to catalog the finds; as a result, they 368 (45) cannot be found again and become as inaccessible as if they had never been discovered. Indeed, with the help of a computer, sold artifacts could be more accessible than are the pieces stored in bulging museum basements. Prior to sale, each could be (50) photographed and the list of the purchasers could be maintained on the computer. A purchaser could even be required to agree to return the piece if it should become needed for scientific purposes. It would be unrealistic to suggest that illegal (55) digging would stop if artifacts were sold on the open market. But the demand for the clandestine product would be substantially reduced. Who would want an unmarked pot when another was available whose provenance was known, and that was dated (60) stratigraphically by the professional archaeologist who excavated it? The primary purpose of the passage is to propose (A) an alternative to museum display of artifacts (B) a way to curb illegal digging while benefiting the archaeological profession (C) a wayto distinguish artifacts with scientific value from those that have no such value (D) the governmental regulation of archaeological sites (E) a new system for cataloging duplicate artifacts

原文说 课堂上课的不及格率低于网络上课的 说明课堂上课的学生成绩更好 根据相关性确定了ad 但是不懂为啥ad方向都和原文是反的 都说网络上课的成绩更好 我还找不出ad之间差别 自己理解题目错了嘛 ？

argument是因为费用大于利润所以广告没有为公司带来长远经济效益 b就是说尽管近期没有体现 但是他们成为royal以后是一个长期的投资 后来肯定是有好处的 d的意思是这个现象是一个自然的发展规律 但是我认为它不能说明这个广告不是没用的

嘻嘻我再问一道数学题！44题我算的x=550，y=11，不明白答案怎么算的c啊，请老师解答，谢谢！

第一题，请问为什么不选A呢，AB是怎么选出B的呢

我选D，正确E 读完5个选项，按逻辑members会比物种更好，剩下DE，觉得差别不大，但D更加直接精炼（感觉正确是E的话和追求效率完全违背了哇，哭）

？？我选C，正确选A AB一组，CDE一组 做错思路：首先看AB开头就有代词their觉得没法指代，内心已经差不多把他俩都排除了，往下看一点，看的比较急，没有彻底清楚句意和结构，就觉得两个逗号了还没有出现主语很奇怪，直接AB全部排除（读是读句意啊啊啊啊，就抓着结构不放是什么鬼，两个逗号是形容词并列修饰。。。）；CDE，对比发现最后都有代词，都会以指代不清，但只有C代词和指代对象相隔最近相对清楚，就选了。（其实看到这里既然都有指代不清为啥不重新看一下AB？？）（问题：代词指代放前面一定就指接下来紧接的名词吗？那么相对代词放在后面还要回头找对应指代，在所有选项都存在代词指代时，放前面是不是总是更好？）（from when…有这种用法吗？）

我选D，正确E AB一组，CDE一组 做错思路：速度的话用介词at 比with 好，CDE中选，对比than前后应该一致，前面既然是速度，后面我认为也应该是名词结构才能并列，所以不应该有is/are（难道说正确选项E是than后省略speeds＋定语连接词which？）

答案是E，面授课记的是A，我选的C。。。啥情况。。。 思路：依靠单复数剩ACE，最后时态差别，去前文找发现都是过去式，排除E，纠结，原文有by所以考虑是不是被动就选了C。

后面应该是完整句子排除C，B指代不清排除，ADE最明显区别就是时态，认为是动作导致activate所以应该是单数，排除D，觉得A比E舒服，错选A。

选了B，正确是 D 读了A觉得SO THAT不对，然后读B觉得逻辑才对（这时其实我应该用这个点去排除就只剩下BD），但我顺着读了，然后排除了C，看到DE都有will，但是原文后面已经有专家正在alarm了，按照句意逻辑我认为不应该还未实行，直接就排除了。