8. Zinc 6.9--A {Sh}eet {S}u{p}ply.--Zinc is rolled into sheets.
9. Antimony 6.7--{G}erman {S}ee{k}er.--Antimony was discovered by
a German monk.
10. Calcium 1.0--Whi{t}e {C}eiling.--Calcium is used in
white-washing.
Assimilative Memory; or, How to Attend and Never Forget · 第 77 / 158 题