A：who I had a talk
B：whom I had a talk with
C：whom I had a talk
D：which I had a talk with
9－6+9=____ 6+64－8=____ 65－20－6=____
判断题
河流的中下游、沿海的大平原都是人口稠密地区。
同纬度甲乙两地海拔分别是720米和1720米，甲地气温28.8OC，乙地气温为（ ）。
