Themanageriscallingona______customertryingtotalkhimintosigningthecontract．

设圆 C 与圆 (x-5) 2+y2=2 ，关于 y=2x 时称，则圆 C 方程为 ( )

We aim to ensure that all candidates are treated fairly and that they have equal______to employment opportunities ．

Successful learning is not a(n)________activity but consists of four distinct stages in a specific order

The destruction of the twin towers _________shock and anger throughout the world ．