身体的____由骨骼、关节和肌肉共同完成。
I don't have time my room from Monday to Friday.
下列叙述错误的一项是（ ）
Helen didn't know anything about it her father told her .
市场上出售一种装有太阳能电扇的帽子，在太阳的照射下，小电扇快速转动，能给炎热的夏季带来一丝凉意，装置的能量转化情况是（ ）
