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
下列铁路线中,全属于南北铁路的是
比一比,再组词。
广____
李____
兔____
已____
厂____
里____
晚____
己____
季____
北京的梅梅高兴的说:“我就要喝到长江水了.”她说的“长江水”来自下列的哪项工程( )
已知A=12a﹣2(a﹣13b2),B=﹣23a+16b2.
(1)化简:2A﹣6B;
(2)已知|a+2|+(b﹣3)2=0,求2A﹣6B的值.