He thought the jar made ______ earth ______ little value and let me have it ______ only 5 dollars.

A．of; of; for

B．from; of; by

C．from; with; for

D．of; of; by

氧瓶燃烧法测定，要求备有适用的：

A．无灰滤纸，用以载样
B．铂丝(钩或篮)，固定样品和催化氧化
C．硬质磨口具塞锥形瓶(用以贮氧、燃烧、吸收)及纯氧
D．A+B
E．A+B＋C