Some 25,000 people were reported ______ in the ever recorded worst earthquake in Iran, which occurred late this month.

A．were killed

B．to be killed

C．killing

D．to have been killed

在等高线上地表形态有五种分别是山顶、鞍部、山脊、山谷和陡崖，按所给提示写出下列四个图形所示的地形部位名称和相应的序号．

（1）等高线弯曲部分向海拔高处突出是______（名称）图中的序号是______（序号）．

（2）等高线弯曲部分向海拔低处突出是______（名称）图中的序号是______（序号）．

（3）两个山顶之间的部位是______（名称）图中的序号是______（序号）．

（4）中间海拔高，四周海拔低的部位是______（名称）图中的序号是______（序号）．

（5）等高线重合的部位是______（名称）．