迅速—____ 悲惨—____ 寒冷—____
复杂—____ 困难—____ 黑暗—____
某金属R与硝酸银溶液反应的化学方程式为:R + 2AgNO3=R(NO3)2 + 2Ag,R与硝酸铜溶液不发生反应,关于R的推断正确的是
STUDY ENGLISH IN AMERICA
Country
Tina comes from ____.
Weekend Activity
Tina visits____ on Sundays.
Location
Tina's host family is in a ____ area.
TV Program
Tina always watches ____ in the evening.
Study Time
Stay for ____ and study English as Tina does!
在道德实践中,道德榜样是 ( )
①传统美德的典型承载者 ②未来理想道德的开拓创新者
③传统美德的捍卫者 ④社会崇高道德价值的积极弘扬者