添括号a+2b-4c-5d=a-( )=a+2b-( )。
-2b+4c+5d;4c+5d
根据句意及所给汉语意思写出所缺单词
小题1:He was sad because he lost his __________ (钱包)on the way to school.
小题2:Can you tell me where I can get the __________ (药) for this toothache?
小题3:He __________ (接受) my invitation to come to my birthday party yesterday.
小题4:My sister often goes to school __________ (没有,不) having breakfast.
小题5:A lot of people like to drink tea with __________ (蜂蜜) in it.
险性事故发生后,由主要责任单位在事故发生后( ),向分局提出事故处理报告,分局于7日内公布处理结果,并报铁路局。
A.当日内
B.2日内
C.3日内
D.4日内