题目

简答题。（1）小明发现自从入夏以来，家中地面瓷砖常常出现小水珠，这种现象通常称为回潮“冒冷汗”。请你用物理知识解释一下“冒冷汗”的原因。（2）在寒冷的冬天，有的同学将两手互搓使手变得暖和，有的同学将手放在嘴边哈气使手变得暖和。请从物理学角度简要解释这两种方法使手变暖和的本质区别。JAKARTA, Sept．17 -- The discovery of four new species of spider in Kalimantan was announced recently, adding to Indonesia's already rich catalog of fauna（动物群）, local media reported on Friday． The findings, by Cahyo Rahmadi, a zoology researcher at the Indonesian Institute of Sciences （LIPI）, and two colleagues, Mark S．Harvey, from the Western Australian Museum, and Jun-ichi Kojima, from Japan's Ibaraki University, were published in Zootaxa, a taxonomy（分类学） journal． The four new species of whip spiders, or tailless whip scorpions, known here as kala cemeti, were found in the Sangkulirang caves in East Kalimantan and around Mount Muller in Central Kalimantan．One of the species was named Sarax yayukae, in honor of Yayuk R．Suhardjono, an Indonesian scientist specializing in cave biology who helped the researchers during their work． Sarax sangkulirangensis was found to be the most widespread of the new species, existing in three regions -- Talabar, Lake Tebo and Pengadan． Sarax mardua, which was found in Mardua Cave in Pengadan, has a pale-colored body and eyes that are smaller than those of Sarax sangkulirangensis． The last of the new species, Sarax cavernicola, got its name because it is found only in caves． It is considered the most unique of the new species because the spine（脊椎） composition on its pincers are all the same length, while other whip spiders have gradually longer spines． Cahyo warned on Thursday that three of the species endemic（地方性的） to the limestone regions of Sangkulirang were threatened by human activity, including mining and land redevelopment． 1．What is the main idea of the passage?       A．The findings were published in a taxonomy journal．       B．Four new spider species were found in Indonesia's Kalimantan．       C．The four new spider species were locally known as kala cemeti．       D．Three of the new spider species were endangered． 2．According to the passage, Sarax sangkulirangensis _______________．       A．got its name in honour of Yayuk R．Suhardjono．       B．achieved its popularity in Talabar, Lake Tebo and Pengadan．       C．has bigger eyes than Sarax mardua．       D．was given its name because it was born only in caves． 3．It can be inferred from the passage that _______________________．       A．A wide variety of animals has already existed in Indonesia．       B．Yayuk R．Suhardjono is majoring in cave zoology．       C．The limestone regions of cavernicola are the home of three of the species．       D．Much land is being redeveloped to protect new spider species． 4．Cahyo Rahmadi gave people a warning ______________________．       A．against mining the limestone of Kalimantan．       B．of overpopulation of the new species in Kalimantan．       C．against endangering three of the species in the limestone regions of Sangkulirang．       D．of threatening the redevelopment of the regions of Sangkulirang．