【单选题】下列关于“民族团结、祖国统一”表述中错误的是()
C.
增强民族团结、维护祖国统一是共筑中国梦、实现中华民族伟大复兴的必要前提
【单选题】Consider firm X belongs to country A and firm Y belongs to country B. Suppose that it is technologically feasible for both firms to produce good Z. Also assume that if they do, then they will be the o...
A.
a. it is optimal for firm X not to produce if firm Y does not produce.
B.
b. both firms can decide to produce since they can anticipate that the other firm will not produce.
C.
c. it is optimal for firm Y not to produce no matter what firm X does.
D.
d. both the firms will suffer losses if they produce simultaneously.
【多选题】可防止踝关节扭伤或降低踝关节扭伤严严重程度的方法有( )。
【单选题】计算机网络最初的模型___________________。
【单选题】随着科学技术的发展,教学手段从最初的实物、模型使用,到今天的计算机、网络等,按其产生发展的先后,可分为传统教学手段、电化教学手段和 ( )这三类 。