Sound travels through different mediums. In which medium does sound travel the fastest? A. Air B. Water C. Steel D. Wood 相关知识点: 试题来源: 解析 C。解析:声音通过不同的介质传播。在钢铁中声音传播得最快。选项 A 空气中声音传播速度比钢铁中慢;选项 B 水中声音传播速度也比钢铁中慢;选项 ...
A. They express people’s curiosity about the past. B. They make people interested in everyday experience. C. They are considered important for variety in form. D. They are regarded as a mirror of the human situation. 【4】Which of the following is the main topic of the passage? A. ...
Protecting forests is essential as they mitigate climate change-induced environmental conditions and protect watersheds, which account for 75 percent of the world’s freshwater. Additionally, forests reduce the risk of natural disasters such as floods, droughts, and landslides. The combination of land ...
palatable and digestible green foliage can be given free choice the pigswill obtain from it most of the vitamins (except for D which isabundantly provided through the medium of sunlight) and trace mineralsthey need.The major minerals provided by the commonly used proteinsupplements are shown in ...
Science information professionals need to make choices through which media they want to communicate with the public. In reaching large audiences outside the domain of formal diffusion of knowledge, the choice may be between the old medium television and the new medium Internet. It seems that ...
The original prescription of BYHWD is available in the ‘TCM Prescriptions Dictionary’, which lists the following seven Chinese herbs: Astragalus mongholicus Bunge, Angelicae sinensis (Oliv.) Diels, Ligusticumi chuanxiong Hort, Paeonia lactiflora Pall, Prunus persica (L.) Batsch, Carthamus tinctorius...
A fundamental question in protein evolution is whether nature has exhaustively sampled nearly all possible protein folds throughout evolution, or whether a large fraction of the possible folds remains unexplored. To address this question, we defined a se
The universalization imperative of technology is irresistable. (para 8) 9. when every artist thought he owed it to himself to turn his back on the Eiffel Tower, as a protest against the architectural blasphemy (para 9) 10. a mobile, extra human plasticity which was absolutely new...
Achieving sustainable rural development is essential for countries worldwide to balance development between urban and rural areas; especially, sustainable social development is crucial. In the face of rapid urbanization in China, the withdrawal of rural
<p>To determine which disease is spread through coughing and sneezing, we will analyze each option provided in the question.</p><p>1. <strong>Identify the Diseases:</strong> - The options given are: - Option 1: Diphtheria - Option 2: Hepatit