为什么纯钛架不容易过敏？

阅读下文并回答问题。

Ben is now fifteen years old. He is interested in collecting coins. He has been collecting them for three years. He can still remember how he started to collect them.

Two years ago, on a Saturday morning, Ben was bored.  He didn’t have anything to do. He wasn’t interested in doing anything. He didn’t want to watch TV or listen to the radio. He didn’t want to play sports or read books. “I’m bored,” Ben said. “What can I do? I want to do something interesting.” Ben’s father had an idea. “I have an idea,” his father said. “Why don’t you collect coins? Coins are fun to collect. And coins are everywhere. You see coins every day. Some coins are valuable. They will make you rich.” Since then, he has been collecting them from his parents.

Now Ben has a big piggy bank (存钱罐) which is filled with coins. Sometimes he can take some of them to buy some snacks with his parents’ permission. In March, 2012, there was an earthquake in Yunnan, and Ben donated many of his coins to help the homeless children in Yunnan. He said he was happy to help others who are in trouble.

小题1:What is Ben interested in?

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小题2:Did Ben’s father advise Ben to collect coins?

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小题3:How did Ben feel when he helped others in trouble?

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我国被称为“日光城”的地方是________。“聚宝盆”是指________。

合作机构管理的风险防控措施包括（）。

A.加强贷前调查，切实核查经销商的资信状况

B.按照银行的相关要求，严格控制合作担保机构的准人

C.动态监控合作担保机构的经营管理情况、资金实力和担保能力，及时调整其担保额度

D.实时监控担保方是否保持足额的保证金

E.严格按照履约保证保险有关规定拟定合作协议，约定履约保证保险的办理、出险理赔、免责条款等事项

什么叫自由弯曲？

Murphy征出现在（）

A.急性单纯性胆囊炎

B.急性梗阻性化脓性胆管炎

C.急性出血、坏死性胰腺炎

D.急性化脓性阑尾炎

E.绞窄性小肠梗阻