《春秋》的编纂体例的（）。
A.国别体
B.纪传体
C.编年体
D.纪事本末体
参考答案：C
“等腰三角形两腰上的高相等”的逆命题是（ ）。
—What does your father usually do on weekends?
—He spends most of his free time ______ newspapers. [ ]
A. read
B. reads
C. reading
D. to read
