用一个5倍的放大镜看一个20度的角，那么看到的仍然是20度的角；
故选：A．
俄罗斯北冰洋沿岸最大的海港是（ ）
A．圣彼得堡
B．摩尔曼斯克
C．海参崴
D．伏尔加格勒
Much to my _______, most of the people ______ to the party were old friends.
A．astonishing; inviting
B．astonished; invitied
C．astonishment; inviting
D．astonishment; invited
