The chemical element symbol for silver is ___. A. Si B. Sn C. Ag D. Zn 相关知识点: 试题来源: 解析 C。Ag 是银(silver)的化学元素符号。Si 是硅(silicon)的化学元素符号,Sn 是锡(tin)的化学元素符号,Zn 是锌(zinc)的化学元素符号。反馈...
百度试题 结果1 题目Which is a non-metal element? A. Gold B. Silver C. Oxygen D. Copper 相关知识点: 试题来源: 解析 C。Gold(金)、Silver(银)、Copper(铜)都是金属元素,Oxygen(氧)是非金属元素。反馈 收藏
each man walked for an hour at an average speed that, in theory, should allow his body to rely mainly on fat for fuel.然后,在科学家实验室的两次早晨访问中,每个人都以平均速度走了一个小时,从理论上讲,这种速度可以让他的身体依靠脂肪...
Nickel is an essential element for at least several animal species. These animal studies associate nickel deprivation with depressed growth, reduced reproductive rates, and alterations of serum lipids and glucose. Although there is substantial evidence of an essential status for nickel in animals, a ...
C) Terrorist element exists in every violent conflict. D) Government actions are never guilty of terrorism. 32.Which of the following could be concluded from the article? A)An indisputable example of a terrorist group is PLO. B)Actions to achieve political ends cannot avoid using force. ...
An element that is very reactive and is often found in compounds rather than in its pure form. Which one is it? A. Fluorine B. Gold C. Silver D. Platinum 相关知识点: 试题来源: 解析 A。氟是非常活泼的元素,通常以化合物的形式存在而不是以纯形式存在。金、银和铂相对不那么活泼。 反馈...
But he had little faith that Dohmler would throw much light on the matter; he himself was the incalculable element involved. By no conscious volition of his own, the thing had drifted into his hands. It reminded him of a scene in his childhood when everyone in the house was lookin...
44. It is an essential aspect of life to cooperate with other people. 44. D【定位】Collaborating with others is an important element of life. 45. Refusing a request is sometimes seen as a privilege not enjoyed by ordinary people.
Tungsten is a refractory metal with the highest melting point and high temperature strength. It is mainly used in rocket propeller nozzles, armor-piercing bullets, super-hard drill bits, molds, etc., and is also commonly used as an additive element in refractory metal alloys. ...
Due to the fact that silver is both a color and an element, there can be some confusion surrounding the different types of silver. The word silver is often attached to alloys that contain less than 92.5% silver, and a few that contain no silver at all. While sterling silver 925 is the...