如果m÷n=2(n不为0)，那么m和n的公因数有2。（判断对错）
—Why __________ she __________ P. E.?
—Because it's __________.
- is it? -- It's white and red.
____，五十弦翻塞外声。 (辛弃疾《破阵子•为陈同甫赋壮语以寄》)
