构成能量的潜能部分体现在下列的( )。
A．太阳的光能中
B．燃烧时产生的热中
C．储存在高山水库中的水中
D．肌肉收缩过程中
参考答案：C
某电场的电场线分布如图所示，下列说法正确的是
A．c点的电势高于d点的电势
B．a点的电场强度大于b点的电场强度
C．若将一负试探电荷由c点移到d点，电势能增加
D．若将一正试探电荷由a点移到b点，电场力做负功
What a pity! The little girl had to drop out of school and _____ the responsibilities that
most parents can take, after her parents passed away in the earthquake. [ ]
A. take on
B. take in
C. take off
D. take after
