()是贯穿党的十八大报告的一条主线。
A、坚持党的领导
B、坚持和发展中国特色社会主义
C、坚持依法治国
D、坚持人民民主专政
参考答案:B
根据语意,为句子排序并标数字码。
( ) I found some books about animals on Shelf A.
( ) I got up at seven yesterday morning.
( ) I wanted a book about animals.
( ) After breakfast,l went to our school library.
( ) I had eggs and sausages for my breakfast.
某种仪器的价格从8000元/台下降到7400元/台,其需求量从900台上升到1000台,该种仪器的需求弹性系数为()。
A.0.970
B.-1.351
C.-1.560
D.1.980