题目

Though _____ my opinion ,my mother didn’t say anything to show that she stood by me. A.on           B.in                  C.for              D.of 答案：D 若直线y＝kx＋2与双曲线x2－y2＝6的右支交于不同的两点，则K的取值范围 [　　] A． B． C． D．