第33题: [单项选择]精密度是指（） A. 对同一样品重复进行检测时所有结果的符合程度 B. 样品的检测值与真值的符合程度 C. 样品测定值与平均值的偏差 D. 样品测定值与标准品值的符合程度 E. 样品测定的最低浓度 参考答案:A 答案解析:精密度分为批内、批间两种精度。批内精度是对同一批样本重复测定结果的评价，批间精度是对两批或两批以上样本重复测定结果的评价。
第36题: [简答题]过去一个星期以来，差不多每天晚上，本街43号都有人打麻将，由十点钟开始，一直打到深夜三点甚至四点，喧闹不堪，使我们无法入睡。我们曾经同他们交涉，但他们却变本加厉。希望你们能派人去制止这种行为。 注意：必须包括对收信人的称谓、写信日期、发信人的签名等基本格式。 Words for reference：麻将mahjong；投诉、抱怨complain；制止put a stop 参考答案:
May BDth, B00Bz
Huanggu District Police Station
Shenyang
Dear Sir,
Almost every night during the past week, people living next door at DC of this street would start seeking pleasure at the mahjong table at about ten o’clock and continue their play, ac- companied of course by loud laughter and curses and cheers, till three or even four in the early morning. We could not go to sleep before they ceased playing as the noise they created was loud enough to wake up any dead man. We have complained to them about this but this only brought louder noises and longer hours of disturbance.
Will you please send some of your men to put a stop to such a nuisance
Yours faithfully,
××
答案解析:
*写信日期写在右上角。
*收信人地址靠左侧写在寄信人信息的下面。
*收信人称谓，其后用逗号。
*首先说明写信原因及目的。
*信的正
