【简答题】计算: (1) (2)3n-[5n+(3n-1)] (3)-4 2 × +│-2│ 3 ×(- ) 3
【单选题】She ______ her vacation so much that she didn't want it to end.
【简答题】Translation: 灵活地运用标准比死守标准显得更合情合理。(flexible)
【简答题】什么叫做和弦? 什么叫三和弦? 三和弦有几种?各种三和弦的结构是什么样的?(请回答是什么+什么)
【简答题】三和弦的转位有( )种。分别叫做( )和弦与( )和弦。
【单选题】Mrs. Smith didn't wear her glasses because ______.
B.
she didn't want to see the dirty room
C.
she finished cleaning the room
【简答题】正弦交流电的有效值、频率和____这三个参数合在一起叫做正弦交流电的三要素。
【判断题】三和弦有两个转位,第二转位叫做四六和弦。