皮皮学，免费搜题
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【多选题】
俗话说“天下没有免费的午餐”。如今,各种免费试用信息充斥网上线下。越来越多的企业在网站上推出了试用体验活动,通过免费产品和品牌影响力吸引“试客”一族的目光、兴趣和消费行为。企业的这种行为有利于( )A.
企业节省生产成本,提高企业经济效益
B.
企业产品改良创新,提高产品的市场竞争力
C.
企业品牌推广,提高企业的形象和信誉
D.
消费者节省购物费用,使生活水平大大提高
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】S1:Report condition of survivor.S2:Survivor is injured.Q:What's the condition of survivor?A. In good condition. B. Suffering from injury. C. Suffering from coldness. D. Suffering from shock.
【简答题】简述中国声乐教育第一人和第一所音乐学校。
【单选题】$str = “1,2,3,4,5,16,20”，使用什么函数可以把字符串str转化为包含各个数字的数组？
A.
$arr = implode($str, “,”);
B.
$arr = implode(“,”,$str);
C.
$arr = explode($str, “,”);
D.
$arr = explode(“,”,$str);
【单选题】What is “ survivor’s anguish ”?
A.
Survivors are always angry.
B.
Survivors are more likely to overcome all the difficulties in their future life, because they experienced the extreme pain of a disaster.
C.
Survivors always suffer a variety of long-term physical pain and disability.
D.
It is a kind of depression in which the survivor suffers an aftermath fear of a disaster and uncertainty about what would happen to him or her in the future.
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