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【单选题】
将两个抛体从同一点抛出,初速率相同,抛射角与水平线的夹角分别为30º和60º。若两者落在同一位置,且忽略空气阻力。哪个物体的速度水平分量与飞行时间之积更大?
A.
两者相同
B.
被沿 30 º 角抛出的物体
C.
被沿60 º 角抛出的物体
D.
无法确定
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【多选题】讯息战略解决的三个基本问题是( )。
A.
广告要说什么
B.
广告如何说
C.
广告为什么要这样说
D.
市场如何细分
E.
重点消费者利益是什么
【多选题】战略要解决的三个基本问题是()。
A.
发展方向
B.
人力资源
C.
发展途径
D.
持续发展
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A.
正确
B.
错误
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【单选题】Have you ever seen a movie in which a building was burned down or a bridge was destroyed? Have you seen films in which a train crashed or a ship sank into the ocean? If so, you may have wondered how t...
A.
she reduces the costs of movie making
B.
she makes scenes look real
C.
she makes destroyed things reusable
D.
she protects their work from being destroyed
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