Even the most successful businessmen sometimes （) the value of their lives and accomplishments.
A. question
B. promote
C. estimate
D. quote
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He died （) before his 36th birthday.
A. shortly
B. strongly
C. shyly
D. significantly
轨道的接头般缝隙为1~2mm, 在寒冷地区冬季施工缝隙一般为（）mm
Wang Yani is a painter of （) talent whose pictures of animals and landscapes are full of life and complex emotion.
A. magical
B. majestic
C. marginal
D. massive
When they become bored or frustrated, they may simply （) learning completely.
A. turn to
B. turn off
C. turn over
D. turn on
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