A sample of our new beef extract has been sent to you today（)parcel post, and we hope it will reach you（)perfect condition.

A、with ⋯in

B、in⋯by

C、on⋯with

D、by⋯in

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发布时间：2023-03-04

更多“A sample of our new beef extract has been sent to you today（)parcel post, and we hope it will reach …”相关的问题

第1题

Questions 31 to 35 are based on the following passage. It is a curious paradox that we thi

nk of the physical sciences as “hard”, the social sciences as “soft”, and the biological sciences as somewhere in between. This is interpreted to mean that our knowledge of physical systems is more certain than our knowledge of biological systems, and these in turn are more certain than our knowledge of social systems. In terms of our capacity to sample the relevant universes, however, and the probability that our images of these universes are at least approximately correct, one suspects that a reverse order is more reasonable. We are able to sample earth’s social systems with some degree of confidence that we have a reasonable sample of the total universe being investigated. Our knowledge of social systems, therefore, while it is in many ways extremely inaccurate, is not likely to be seriously overturned by new discoveries. Even the folk knowledge in social systems on which ordinary life is based in earning, spending, organizing, marrying, taking part in political activities, fighting and so on, is not very dissimilar from the more sophisticated images of the social system derived from the social sciences, even though it is built upon the very imperfect samples of personal experience.

In contrast, our image of the astronomical universe, of even of earth’s geological history, can easily be subject to revolutionary changes as new data comes in and new theories are worked out. If we define the “security” our image of various parts of the total system as the probability of their suffering significant changes, then we would reverse the order of hardness and see the social sciences as the most secure, the physical sciences as the least secure, and again the biological sciences as somewhere in between. Our image of the astronomical universe is the least secure of all simply because we observe such a fantastically small sample of it and its record-keeping is trivial as compared with the rich records of the social systems, or even the limited records of biological systems. Records of the astronomical universe, despite the fact that we see distant things as they were long ago, are limited in the extreme.

Even in regard to such a close neighbour as the moon, which we have actually visited, theories about its origin and history are extremely different, contradictory, and hard to choose among. Our knowledge of physical evolution is incomplete and highly insecure.

第31题：The word “paradox” (Para. 1, Line 1) means “________”.

A) implication

B) contradiction

C) interpretation

D) confusion

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第2题

______ to this letter you will find our _______ in triplicate for jackets.

A、Subject/sample invoice

B、Enclosed/bona fide holders

C、Applied/entrustment

D、Attached/proforma invoice

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第3题

根据下面材料，回答下列各题。 University of York biologist Peter Mayhew recently found that

global warming might actually increase the number of species on the planet，contrary to a previous report that higher temperatures meant fewer life forms—a report mat was his own． In Mayhew’s initial 2008 study，low biodiversity among marine invertebrates(无脊椎动物)appeared to coincide with warmer temperatures on Earth over the last 520 million years． But Mayhew and his colleagues decided to reexamine their hypothesis，this time using data that were“a fairer sample of the history of life．”砌this new collection of material．they found a complete reversal of the relationship between species richness and temperature from what their previous paper argued：the number of different groups present in the fossil record was higher，rather than lower，durin9“greenhouse phases．” Their previous findings rested on an assumption that fossil records can be taken to represent biodiversity changes throughout history．Thisn’t necessarily the case．because there are certain periods with higher．quality fossil samples．and some that are much more difficult to sample well．Aware of this bias．Mayhew’s team used data that standardized the number of fossils examined throughout history and accounted for other variables like sea level changes that might influence biodiversity in their new study to see if their old results would hold up． Two years later，the results did not．But then why doesnt life increasingly emerge on Earth as our temperatures get warmer？While the switch may prompt some to assert that climate change is not hazardous to living creatures，Mayhew explained that the timescales in his team’s study are huge--over 500million years--and therefore inappropriate for the shorter periods that we might look at as humans concerned about global wanning．Many global warming concerns are focused on the next century．He said——and the lifetime of a species is typically one to 10 million years． “I do worry that these findings vill be used by the climate skeptic community to say‘look．Climate warming is fine。he said．Not to mention the numerous other things we seem to do to create a storm of threats to biodiversity—think of what habitat(栖息地)destruction，overfishing，and pollution can do for a species’viability(生存力)．Those things，Mayhew explained，give the organisms a far greater challenge in coping with climate change than they would have had in the absence of humans． “If we were to relax all these pressures on biodiversity and allow the world to recover over millions of years in a warmer climate．then my prediction is it would be an improvement in biodiversity，”he said．So it looks like we need to curb our reckless treatment of the planet first，if we want to eventually see a surge in the number of species on the planet as temperatures get warmer．We dont have 500 million years to wait． What is the finding of Peter Mayhew’s recent study？

A.Higher temperature causes the low biodiversity of marine invertebrates．

B.Fossil record can represent a relatively believable history of life．

C.The number of fossils was higher during greenhouse phases．

D.Global warming might promote the richness of species on Earth．

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第4题

We know less about the astronomical universe than we do about any social system bec

ause ________.

A) theories of its origin and history are varied

B) our knowledge of it is highly insecure

C) only a very small sample of it has been observed

D) few scientists are involved in the study of astronomy