JOG
发表于 2025-3-27 00:29:18
http://reply.papertrans.cn/48/4748/474780/474780_31.png
一大群
发表于 2025-3-27 03:31:01
Gary A. WobeserMogao Grottoes, which is a World Heritage site, have been seriously damaged by the crystallization of salts. This damage is likely to have been caused by short-term factors such as rainwater and flooding, and a long-term factor, namely, groundwater movement. In order to preserve the grottoes, it is
认为
发表于 2025-3-27 08:29:52
http://reply.papertrans.cn/48/4748/474780/474780_33.png
Detonate
发表于 2025-3-27 12:37:32
Special Problems in Working with Free-Living Animalsst encounters difficulties that are unimportant or that can be controlled, literally or statistically, in studies of the other two groups. Most of these difficulties are a result of the “.” of the subject animals. The word . has many meanings, including “.”, “.”, “.”, “.” and “.”. No wild animal is
MAPLE
发表于 2025-3-27 14:09:45
Identifying and Defining a Disease, what is causing it?, and what effect is it having? In some cases, there may be a marked urgency to the study, as when it is necessary to determine the cause of a major outbreak of disease so that control measures can be instituted. In other instances, one can take a more leisurely approach, as whe
滔滔不绝地讲
发表于 2025-3-27 18:07:02
http://reply.papertrans.cn/48/4748/474780/474780_36.png
Coronation
发表于 2025-3-28 01:23:31
Defining Environmental Factorsle that each disease occurs in a particular type of environment or niche, and that most diseases have a somewhat restricted geographical distribution. The study of the localization or . (from the Latin nidus for nest) of diseases has been termed “.” (Pavlovsky, 1966). This discipline was developed f
拘留
发表于 2025-3-28 02:11:52
Formulating and Testing Hypotheses forth as explanation for the occurrence of a specified phenomenon. The basis of scientific investigation is the collection of information that is used either to formulate or to test hypotheses. One assesses the important variables and tries to build a model or hypothesis that explains the observed
overwrought
发表于 2025-3-28 08:42:06
http://reply.papertrans.cn/48/4748/474780/474780_39.png
Root494
发表于 2025-3-28 11:45:34
Records and Record Keeping to those that preceded it either through attempting to confirm the previous work or, more often, by building upon it. The bricks for this building process are recorded results and observations; the mortar, that allows construction, is the exchange of information among investigators. Accurate collec