明初计成的《园冶》是专门总结造园技艺的精典著作。
A. 正确
B. 错误
Ships are______________than planes that people take them mainly for pleasure.
A. very much slower
B. so much slower
C. too much slower
D. much more slower
Our English teacher insisted that we spend more time on ______________reading.
A. worth
B. worthy
C. worthwhile
D. worthless
应收账款周转天数延长会对客户产生哪些直接影响()。
A. 销售资金不能及时回笼
B. 无法正常还本付息
C. 出现亏损
D. 存货增加