空调管路抽真空的目的是让R134a气体多灌一些。()
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如果两个公司未来各年的净收益完全相同，那么这两个公司的价值相同。()
When a new technological innovation appears, businesses should______.
A. seize on the opportunity and invest heavily in it so as to reap its future benefits
B. use it as a means to catch up with larger companies, if the investor is a smaller business
C. base its actions on its research and beliefs regarding its future profitability
D. refrain from investing heavily, in case its effect is small or none
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