幼儿歌曲旋律有哪些特点?
A. 节奏简单、顿逗较多
B. 级进为主、多见重复
C. 音域不宽、旋律流畅
D. 歌词简单,通俗易懂
Collaboration in study groups is a huge part of surviving Harvard's ___________(繁重的学习负担).
The school's faculty and students chose Obama to be their commencement speaker to _______(开始) their 50th anniversary celebration.
I slipped back inside the house and just walked through the rooms for no reason ________(尤其、特别).