硼砂作为基准物质用于标定盐酸溶液的准确浓度,滴定时若锥形瓶中残留蒸馏水,则对所标定盐酸溶液浓度的结果( )。
A. 偏高 B. 偏低 C. 无影响 D. 不能确定
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The arrival of spring can mean only one thing: It's time to bring the clay planters inside for the winter. It was supposed to be done six months ago, but blind adherence to a sensible chore schedule is not the way of a practitioner of the art of procrastination.And art it is. And some of us have achieved a high level of accomplishment in the field of putting off accomplishment. Is it not time to stop upbraiding us with brisk announcements of official desk-cleaning days, and give us credit for the complex delaying tactics we use to avoid answering mail for months at a timeNever mind the psychological explanations unearthed by scientists - fear of failure, fear of success, perfectionism, avoidance of conflict, or over-reliance on chore completion as a source of self-esteem.And don't call us lazy; researchers say that laziness is a minor factor because procrastination is so time-consuming. A social worker who led procrastination counseling groups estimates seventy-five percent of procrastinators' work time was spent putting off the work. Why not consider the advantages of procrastinationIf you keep putting off a chore, you may not have to do it at all. Someone else may do your chore or it may become a moot point, streamlining your to-do list while giving you less to do. Take storm windows. In our guest room, ours are leaning against the wall because we never around to putting them on for the winter. Although, frankly-why botherMoreover, you can do things faster if you put them off, because you have to. Most people take three months to complete their income -tax returns, Waas observed; procrastinators take three hours on April 15.“A positive procrastinator is ... better organized than the average individual,” said Waas, an advertising agency owner who founded the club on a lark in 1956 and then found himself getting applications for membership.“Many of the things we put off never have to be done anyway. You save a lot of time.”What better way to pare your life down to the essential than to put off cleaning out your refrigeratorLet those newspapers and school notices pile up, and repeat: Ommm ...If we completed all our minor tasks promptly, we would be left with too much time on our hands to consider our major problems, the meaning of life, and what to do when our children become teenagers. Idle hands make mental mischief, but procrastinating hands always have photographs to file.Can anything truly compare with the thrill of a last-minute panic Desperation focuses the mind and jump-starts the creative processCleaning the fishbowl at midnight to avoid imminent piscine death, buying birthday gifts at the all-night drugstore, vacuuming dust bunnies fifteen minutes before guests arrive - these are the things that make the blood course and the mouth swear.In short, we are to be envied, not reproached. Join us in our off-putting ways, and you, too, can truly taste life, and the bittersweet tang of late-payment fees.Questions B1 to B5Complete the summary below with information from the passage, using three words or fewer for each blank.Normally the behavior of procrastination is criticized for wasting time. Scientists have already put forward the (B1)________ such as fear of failure, fear of success, perfectionism and so on. Research shows that laziness is only (B2)________ . Whereas in this passage, the author believes that procrastination also has a bright side. Advantages are exemplified, such as (B3) ________ , (B4) ________ , preservation of mental health and (B5) ________ . In short, procrastination helps people to taste life.
The arrival of spring can mean only one thing: It's time to bring the clay planters inside for the winter. It was supposed to be done six months ago, but blind adherence to a sensible chore schedule is not the way of a practitioner of the art of procrastination.
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