— She is very nice and friendly, although sometimes she is so strict ______ my study.
A：about, at
B：of, about
C：/, about
D：of, with
（m2-m-2）x2+mx+3=0是关于x的一元二次方程，则m的取值范围是（ ）
写出反义词。
喷出：____ 捉拿：____ 重：____
