What instrument is made of metal? A. Recorder B. Kazoo C. Trumpet D. Harmonica 相关知识点: 试题来源: 解析 C。解析:A 选项 recorder 竖笛一般是塑料或木质;B 选项 kazoo 卡祖笛通常是塑料或金属与塑料结合;C 选项 trumpet 小号主要是金属制成;D 选项 harmonica 口琴主要是金属和塑料结合。本题考查对...
Sawing is more commonly used for wood but also applies to metalworking processes. Metal sawing uses a blade with sharp, toothed edges. The blade is usually flexible and rotates quickly between two wheels. There are many different configurations of metal saws, such as horizontal and vertical band ...
解析 04A 解析:be made of“由...制成”,从成品中能看出原 材料;be made from“由...制成”,从成品中看不出原材 料;be made in+地点,表示“在某地制造”;be made by sb.被某人制造。 结果一 题目 【题目】4 -Do you know what the key is?-Metal. A. made ofB. made fromC. made ...
在科研中问出更多的What if---读William Evans的“A Rare-Earth Metal Retrospective to Stimulate All Fields”有感 著名金属有机化学家William Evans在JACS最近写了一篇非常有意思的perspective,读完后让我深有感触。 https://pubs.acs.org/doi/10.1021/jacs.1c08288pubs.acs.org/doi/10.1021/jacs.1c08288...
While metal link bracelets would seem to be the most durable, they are easily scratched and more costly to replace. These design features culminated in WWII when the US Army issued contracts for the A-11 followed in the early 1950s by the A-17 watch patterns. These two designs, ...
The sculpture is made of metal and has a unique shape. What kind of sculpture is it? A. wooden sculpture B. metal sculpture C. clay sculpture D. stone sculpture 相关知识点: 试题来源: 解析 B。本题考查雕塑的材质和形状。题干明确提到由金属制成,A 选项是木质雕塑;C 选项是黏土雕塑;D 选项...
At Zapier, though, we use a YubiKey to do this. It's way more convenient. And much to the delight of our security team, it's more secure than other two-factor authentication devices. Here's why, and how you can set up your YubiKey, too. Table of contents: What is a YubiKey?
17 A bar of metal, which is a good thermal conductor, is heated at one end. What is the main method of transfer of thermal energy along the bar?A latice vibrationB movement of atoms of the metal along the barC transfer by electronsD vibration of atoms of the metal bar 相关知识点: ...
Below we have listed a few notable features of the two, highlighting the mounting style that outperforms the other. Gasket mounts offer a more stable typing experience. Because the gasket material is slightly bigger than the screw, it provides a stable key press. This results in less wobble ...
Key Takeaways Green tech–or green technology–is an umbrella term that describes the use of technology and science to reduce human impacts on the natural environment. Green technology encompasses a wide area of scientific research, including energy, atmospheric science, agriculture, material science,...