【单选题】系统在r(t)=t2作用 下的稳态误差e=∞,说明()
【单选题】What does 'they' in the sentence 'They are more concerned with the present and the future' refer to?
C.
The young and the old people.
【单选题】The main function of the first paragraph in this article is to _______.
A.
define Minimalism and introduce the concept of its far-reaching influence
B.
outline Minimalism’s onset and progress through modern day media
C.
provide examples of Minimalism’s influence in New York’s art culture
D.
introduce the topic of Minimalism as an art form
【单选题】★8.已知黑鱼火锅的成本毛利率为120%,耗用的净鱼肉为1千克,单位成本为22元/千克。调味料成本为3元,则该火锅的销售价格为( )。
【单选题】The leaders of the two countries are planning their summit meeting with a pledge to maintain and develop good ties.