Which of the following swords is inflexible? A: foil B: épée C: sabre D: foil and sabre

【判断题】The gold foil of Shang Dynasty is considered to be the possible origin of paper cutting in history.

Can you make us a firm offer ____ 3,000 metric tons ____ tin foil sheets?

经典的规则归纳算法有（ ）。 A: CN2 B: ID3 C: FOIL D: AQ

经典的规则归纳算法有 A: AQ B: CN2 C: FOIL D: ID3

经典的规则归纳算法有（ ）。 A: AQ B: FOIL C: CN2 D: ID3

‍经典的规则归纳算法有‌ A: AQ B: CN2 C: FOIL D: ID3

The custom of carving patterns and figures on silk and gold foil for decoration on festivals and holidays was popular during Qing Dynasty.

______________ expanded the money supply by breaking plastic chips in two and found pieces of tin foil and tried to make copies of metal coins.

17.2 Can you make us a firm offer ____ 3,000 metric tons ____ tin foil sheets? A: for, of B: on, in C: of, for D: for, for