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【单选题】
若有定义“ long a, b ”且变量 a 和 b 都需要通过键盘输入获得初值,则下列语句中正确的是 .A.
scanf("%ld%ld,&a, &b");
B.
scanf("%d%d",a, b);
C.
scanf("%d%d",&a, &b);
D.
scanf("%ld%ld",&a, &b);
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A.
服务不易进行展示，难以沟通
B.
服务不能退货或转销
C.
服务不能受到专利保护
D.
缺乏存储能力
E.
服务的供应和需求难以同步进行
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【多选题】服务的无形性特征引发的营销挑战包括_。
A.
服务不易进行展示，难以沟通
B.
服务不能退货或转销
C.
服务不能收到专利保护
D.
缺乏存储能力
E.
服务的供应和需求难以同步进行
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【简答题】It was a hot summer day. My dad and I were getting ready to go out for a ride on the boat with my friend Katie and the dog when the phone call came, the call that made that bright, beautiful day a col...
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