What made Twain become bitter late in life?
Age
B. Money
C. personal experience
D. personal tragedy
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According to Twain, what was missing in American ambition?
A. Energyand thought
B. Health and wealth
C. knowledgeand energy
D. wealth and thought
How long did Mark Twain try soldiering as a confederate guerrilla?
A. One week
B. Two weeks
C. One month
D. Two months
Premiere PRO CS编辑的最小单位是
A. 帧
B. 秒
C. 毫秒
D. 分钟
物理分辨率达到()以上则称为高清,简称HD。
A. 720P
B. 1080P
C. 4K
D. 8K