园林中对于借景的原则是“俗则屏之,嘉则收之”,这句话出自( )。
A.李渔B.计成C.文震亨D.米万钟
参考答案:B
When yield volatility increases, the values of a putable and a callable bond will: Callable bondPutable bond () ①A. Increase Increase ②B. Decrease Decrease ③C. Decrease Increase
A.①
B.②
C.③
隔爆性开关中装有的RC阻容吸收装置是过电压保护装置。()