某重型机械设备厂为在国内外市场提高竞争能力，提出了加强产品质量控制和质量检验的一系列具体措施。其中最根本最重要一项是提高人员的素质。尤其是对质量检验和质量管理相关人员进行有关质量管理知识和技能的再培训。经学习大家对质量检验的概念、预防能力和检验人员的职责等问题加深了认识。现回答以下问题：
当过程（工艺）、作业活动完成前后，由作业者将拟检材料、物品或事项送达及通知检验部门或检验人员进行检测是（ ）。
A．随机抽样
B．全数检验
C．送样
D．抽样
参考答案：C
解析：考查对质量检验七步骤中获取检测样品知识点的理解。获取检测样品的途径有两种：一种是送样，即过程（工艺）、作业活动完成前后，由作业者将拟检材料、物品或事项送达及通知检验部门或检验人员进行检测。另一种是抽样，即对检验的对象按已规定的抽样方法随机抽取样本，根据规定对样本全部或部分进行检验，通过样本的合格与否推断总体的质量状况或水平。c项符合题意，故选择c。
Beautiful pictures of mountains and forests, clear skies, flying birds, wild animals, silly faces — you can find them all in one place. 46 ? On a postcard! Have people always sent postcards? No! Before postcards, people 47 sealed (密封的) letters. The 48 for the first decorated (装饰的) postcard came to John P. Charlton in 1861. He thought a simple card 49 a border would be a great way to send a note. Then in the late 1800s, postcards which had pictures on them 50 . By law, people had to write their note on the front—on the picture! The back was 51 for the address. Several years later, England allowed a divided-back (背面隔开的) postcard. Then people could write their 52 on the back left side. And they put the address 53 . During the early 1900s, the golden age of postcards, people around the world were more and more 54 picture postcards. In 1908, Americans alone mailed over 677 million postcards. Today, postcards are the 55 most popular collection in the world after stamps and coins. You can always see or get a lot of newly-designed postcards, especially on New Year's Day.
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