题目内容

在先选择区域的情况下，使用Alt键可以增加选区。

A. 对
B. 错

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学习Photoshop主要还是应用，不同的图片素材、不同的效果要求，是需要通过结合不同的工具和命令来实现的，“条条大路通罗马”，未必有非常严格固定的操作步骤和严格的参数。

A. 对
B. 错

Lesson 8 背景知识选择-1ILS is considered to be the easiest instrument approach to fly because it offers vertical guidance through and lateral guidance through _ as well as range guidance through markers.

Lesson 8 背景知识选择-2There are three categories of instrument approach procedures:_with course and glide path guidance ,approach with vertical guidance(APV), and __without glide path information

Lesson 8 背景知识选择-3Fuel dumping(or afuel jettison) is a procedure used by aircraft to ____in certain _ situationswhen they have to for landing shortly after takeoff or they have to land_____ of the intended destination airport.