清代的炮制专著是
A.《神农本草经》
B.《炮炙大法》
C.《雷公炮制论》
D.《修事指南》
E.《本草经集注》
参考答案:D
解析:清代诞生了我国第三部炮制专著——张仲岩的《修事指南》。
下图是化学实验中常见的几种装置。
请回答下列问题:
(1)利用上述A、D装置的组合可以制取的初中常见的气体有 (写两种),写出其中任一种气体实验室制取的化学反应方程式 。
(2)某同学欲收集一种难溶性的气体,且E装置可以替代D装置来收集该气体,请简述该同学使用E装置来收集该气体的两种方法: ;
。
Jayce Arnold, a CFA candidate, is studying how the market yield environment affects bond prices. She considers a $1000 face value, option-free bond issued at par. Which of the following statements about the bond’s dollar price behavior is most likely accurate when yields rise and fall by 200 basis points, respectively Price will:()
A. decrease by $124, price will increase by $149.
B. increase by $124, price will decrease by $149.
C. decrease by $149, price will increase by $124.