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    “江南地广野丰，民勤本业，一岁或稔（丰收），则数郡忘饥。丝锦布帛之饶，覆衣天下。”

请回答：

生产同样多的零件，小张用4小时，小李用了6小时，小李和小张的工效简比是（ ）。

    Wang Fei，a Chinese student，and Mary，an American student studying Chinese in China，were in a supermarket．They saw a young man walking down the stairs．In his hurry，he missed the last two steps and fell onto the ground．He tried to stand up while people around him laughed．Luckily，he seemed to be OK．

    Mary found Wang Fei smiling a little and was not happy about it. “Tell me, Fei, how could people laugh when someone fell like that? Why didn't they go up and ask him if he was hurt?”

    Wang Fei said, “Because they knew he wasn't hurt too much.”

    “But I still don't understand．A fall is a fall．In my culture, people would never laugh!”

    This is an example．The Chinese and the westerner will think and act differently when seeing such a thing．Chinese people are used to laughing or smiling．Very often the person who is in embarrassing（困窘的）situation would also laugh or smile to get out of it．However，if someone gets hurt seriously，it will not be a laughing matter any more．People will help him or her instead．

    But，in that case，a westerner will rush over and help the person get up．If a westerner falls，he or she，like a Chinese person，may try to make a joke if he or she is not hurt．If two close friends are walking together，and one falls but clearly isn't hurt，a common joke is to say “Have a nice trip”．

    So different people have different habits and different countries have different cultures

    程信，字彦实，其先休宁人，洪武中戍河间，因家焉。信举正统七年进士，授吏科给事中。也先犯京师信督军守西城都督孙镗击也先失利欲入城信不纳督军从城上发箭炮助之镗战益力也先遂却。景泰元年，请振畿辅饥民，复河间学官、生徒因用兵罢遣者，皆报可。明年二月，出为山东右参政，督饷辽东。巡抚寇深奏盗粮一石以上者死，又置新斛视旧加大，属信钩考。信立碎之，曰：“奈何纳人于死！”深由是不悦信。天顺元年，擢太仆卿。京卫马旧多耗，信定期征之。三营大将言太仆苛急，请改隶兵部。信言：“高皇帝令太仆马数，勿使人知。若隶兵部，马登耗，太仆不得闻。脱有警，马不给，谁任其咎?”帝是之，乃隶太仆如故。明年，改左佥都御史，巡抚辽东。都指挥夏霖恣不法，佥事胡鼎发其四十罪，信以闻，下霖锦衣狱。门达言信不当代奏，时寇深方掌都察院，以前邻劾信。征下诏狱，降南京太仆少卿。母忧归。成化元年，起兵部，寻转左侍郎。四川戎县山都掌蛮数叛，陷合江等九县。廷议发大军讨之。以襄城伯李瑾充总兵官，进信尚书，提督军务。至永宁，分道进。信与瑾居中节制。转战六日，破寨七百五十余。前后斩首四千五百有奇，俘获无算。录功，进兼大理寺卿，与白圭同莅兵部。信欲有为，而阻于圭，数称疾。改南京兵部，参赞机务。明年致仕，逾年卒。谥襄毅。

    信征南蛮时，制许便宜从事。迄班师，未尝擅赏戮一人。曰：“刑赏，人主大柄也，不得已而假之人。幸而事集，辄自专，非人臣所宜。”在南京，守备臣欲预钱谷讼狱事，信曰：“守备重臣，所以谨非常也。若此，乃有司职耳。”论者韪之。

（节选自《明史·列传第六十》）