热电阻由几部分组成?引线为什么采用三线制?
参考答案:
由热电阻体、绝缘套管、保护套管及接线盒组成。采用三线制的目的是减少引线电阻变化引起的附加误差。
Effective duration is more appropriate than modified duration as a measure of a bond’s price sensitivity to yield changes when:()
A. the bond contains embedded options.
B. yield curve changes are not parallel.
C. the bond is a floating rate security.
翻译句子。
1. 她这个周末准备干什么?
What she to do this weekend?
2. 我叔叔的生日在四月三日。
My is on the of .
3. 我比表哥小三岁,但是我比他高。
I'm three years my cousin, but I'm than .
4. 请为我画幅画。
a picture me, please.
5. 去年圣诞节我们举办了一个派对。
We a party last .