Which of the following statements about traveling is TRUE according to Mr. Green？
A. Traveling is only a time for him to have a rest.
B. Traveling provides him with a lot of experience.
C. He is free from responsibility when traveling.
D. He changes a lot every time after traveling.
查看答案
Mr. Green affords his traveling by all of the following EXCEPT ______.
A. working for his friends living in the place he's visiting
B. singing and giving concerts during the trip
C. living cheaply when traveling
D. money from his main work
According to the writer, what may chiefly be responsible for the Columbia accident？
A supposed damage to the left wing of the spacecraft.
B. The deliberate rejection of satellite images offered.
C. A sense of sentiment and arrogance involved.
D. The space agency's inaction during its mission.
混凝土或抹灰基层涂刷溶剂型涂料时，含水率不得大于()。
A. 7%
B. 8%
C. 9%
D. 10%
经济资本就是账面资本。 ()
A. 正确
B. 错误
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