【单选题】Filling blanks with the right indefinite or definite articles: Interactional competency is ______ ability to communicate with others. Piano is _____ type of musical instrument which consists with stri...
【单选题】下列有关作用力的说法正确的是
A.
金属键、离子键、分子间作用力都没有方向性和饱和性
B.
键能、金属的原子化热、晶格能分别可以衡量氢键、金属键、离子键的强弱
C.
离子键、金属键、氢键、范德华力本质上都是静电作用
D.
乙酸、丙醇、丙酮的沸点都比丁烷高是因为前三者分子间都存在氢键
【单选题】Filling blanks with the right indefinite or definite articles:International competency is___ability to communicate with others.Piano is ____type of musical instrument which consists with strings and ...
【多选题】whar 3 things does a plant need?
C.
League of Legends (LOL)