我国基本国情在经济上主要体现在[ ]
A.社会生产力水平总体还比较低
B.我国还处于社会主义初级阶段
C.科技水平和民族文化素质较低
D.社会主义的具体制度还不完善
答案:A
为保证电梯正常运行特设置一些电气安全装置有:().
A.错断相保护
B.短路保护
C.欠、失压保护
D.过载保护
10,000 dollars is a large sum of money, but it is still _____ than we need for a new house. [ ]
A. very few
B. very little
C. far fewer
D. far less