题目内容

[音频]Listen to the recording and choose the best answer.1) Which of the following does not change according to Einstein? A. TimeB. MassC. Speed of lightD. Length2) The two spaceships mentioned are exactly alike except for .A. speedB. colorC. massD. motion3) What does the scientist in the spaceship measure? A. The speed of the spaceship.B. The time needed for a beam of light’s travel in the spaceship.C. The speed of the other spaceship.D. The time needed for a beam of light’s travel in the other spaceship.4) What did the scientist in the red ship see or conclude? A. His beam of light does not appear to go straight up.B. The beam of light in the blue ship appears to come straight down.C. Time passed more slowly in the red ship.D. The blue ship is shorter than the red one.

查看答案

搜索结果不匹配？点我反馈

更多问题

A. 单击“插入”选项卡下“媒体”功能区的“音频”图标
B. 单击“视图”选项卡下“媒体”功能区的“音频”图标
C. 单击“开始”选项卡下“媒体”功能区的“音频”图标
D. 单击“审阅”选项卡下“媒体”功能区的“音频”图标

A. 打开“自定义动画”任务窗格，在该声音文件的“效果选项”对话框中设置
B. 打开“自定义动画”任务窗格，在该声音文件的“计时”框中设置
C. 选定声音图标，在“声音工具”选项卡的“声音选项”中设置
D. 无法设置

A. 单击“插入”→“媒体”→“音频”→“pc上的音频”
B. 单击“插入”→“媒体”→“声音”→“pc上的声音”
C. 单击“插入”→“媒体”→“声音”→“声音文件”
D. 单击“插入”→“媒体”→“音频”→“声音文件”

A. 单击“音频工具/播放”→“音频选项”→“自动”
B. 单击“音频工具/格式”→“音频选项”→“自动”
C. 单击“音频工具/播放”→“音频选项”→“开始”→“自动”
D. 单击“动画”→“计时”→“开始”→“上一动画之后”