It was u____ that he fell off the truck without being hurt.

请仔细阅读下面短文，从A到F的六个选项中选出符合各段主题的句子，完成第31-35题。(其中一项为多余选项)

Remembering names is an important social skill. Here are some ways to master it.

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When you hear a person's name, repeat it. Immediately say it to yourself several times without moving your lips. You could also repeat the name in a way that does not sound you are forced to.

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You can let other people help you remember their names. After you've been introduced to someone，ask that person to spell the name and pronounce it correctly for you. Most people will be pleased by the effort you're making to learn their names.

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To be honest to say that you can't remember someone's name can actually make people relaxed. Most of them will feel sympathy if you say, “I'm working to remember names better. Yours is right on the tip of my tongue. What is it again?”

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Consider going early to meetings, parties and classes. Sometimes just a few people show up on time. That's fewer names for you to remember. And as more people arrive, you can hear them being introduced to others -- an automatic review for you.

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When meeting a group of people, concentrate on remembering just two or three names. Free yourself from remembering every one. Few of the people in mass introductions expect you to remember their names. Another way is to limit yourself to learning just first names. Last names can come later.

读材料回答问题。

材料一：土地改革后，农村经济基本上还是一家一户的小农经济，劳动生产率低下，假如任其自由发展，可能会导致农村贫富两极分化。如果不引导农民走组织起来的路，不仅不能改善农民的生活，而且农村也不可能为工业的发展提供必要的商品、粮食、轻工业原料等条件。——《历史纵横》

材料二：包字万岁！早包早富，迟包迟富，不包永远不能富。——20世纪70年代末某村宣传标语

材料三：1958年，党中央提出建设社会主义总路线后，在“大跃进”的高潮中，全国农村开展了人民公社化运动。

读“我国西气东输工程示意图”，回答下列问题．