Which industry has become innovating and bringing new applications to American market?
A. Video games
B. Publishing
C. Music
D. TV
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Whose M&E market is the largest one worldwide? ()
A. China
B. England
C. Japan
D. The U.S.
The U.S. filmed entertainment industry encompasses the following aspects EXCEPT
A. Movie theaters
Box office
C. TV subscriptions
D. Electronic home video consumption
提高混凝土的抗渗性和抗冻性的关键是（）。
A. 增大水灰比
B. 选用合理的砂率
C. 提高密实度
D. 增加骨料的用量
混凝土的抗冻性用（）什么指标来表示
A. 冻结温度
B. 冻结天数
C. 抗冻等级“F”加数字
D. 保水程度
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