Kelly works in a restaurant as a waitress in her spare time, so we can say she does a ________ job.
A:busy
B:full-time
C:part-time
“葵花朵朵向太阳”所表现的生物特征是( )
在1~18元素的原子中,核外电子能量最低的电子层是( )
与例句中加横线的字用法相同的一项是( )
例句:日凿一窍
如果a、b互为倒数,x、y互为相反数,则5(x+y)﹣ab=( )