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【单选题】
通常网络广告是以 ( ) ,嵌在网页中,用以表现广告内容 。A.
图像文件
B.
数字文件
C.
文字文件
D.
WEB
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举一反三
【单选题】Sometimes it's just hard to choose. You're in a restaurant, and the waiter has his pen at the ready. As you hesitate, he gradually begins to take a close interest in the ceiling, his fingernails, then...
A.
it is common for his customer to hesitate in ordering a meal
B.
it is impolite for his customer to order with hesitation
C.
it is difficult for his customer to expect quality food
D.
it is possible to get know his customer's partner
【简答题】将 14.1500 修约到只保留一位小数 ____ 。 测定大气中 SO2 的标准分析方法是 ______ 。
【简答题】将下列数据修约到只保留一位小数：14.3426、14.2631、14.2501、14.2500、14.0500、14.1500