题型:填空题 某校七年级学生张某经常遭到三个不法分子的勒索,把零花钱全交给他们当作保护费,张某为此提心吊胆,异常苦恼。他应该怎么做? [ ]A、忍气吞声,花钱“消灾” B、直接同不法分子搏斗C、向大人求助或想办法“智取” D、哭泣,以求得罪犯的同情 查看答案
题型:填空题 A fairly accurate estimation of a ship’s position can be calculated by a technique known as().A.dead reckoningB.pilotageC.great circle sailingD.geographic navigation 查看答案