According to the text, the early warnings about smoking and the early warnings about global warming were similar because______.
A. both were dismissed at first by those with vested interests
B. both ignored the underlying problem
C. both failed to receive public support
D. both were successful in the end
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The word "prescient"(line 1, para. 2)most probably means "______".
A. prophetic
B. relevant
C. antiquated
D. conscious
房地产开发企业建造、开发的开发产品,只有办理完工(竣工)备案手续以及会计决算手续,才能视为开发产品已经完工。()
请问CAN总线和PROFIBUS总线的优缺点有哪些?
导热系数λ是表征导热性能优劣的参数,单位是()。
A. W/(m.)
B. W/(m2.)
C. m/(W.)
D. W.m/