用短除法分解下列各数的质因数
54 108 36.
利用短除法将54、108、36分解质因数如下:
答:54=2×3×3×3;108=2×2×2×3×3;36=2×2×3×3.
The president spoke at the business meeting for nearly an hour without ___ his notes. [ ]
A. bringing up
B. referring to
C. looking for
D. trying on
要约应具备的条件是()。
A.要约是一种意思表示
B.要约的内容应具体明确
C.要约的内容应与承诺的内容一致
D.要约表明经受要约人承诺,要约人即受该意思表示的约束