某雄黄矿工人的肺癌发病率高达234.2/10万，比该省省会居民高出25_爱下问搜题

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问题单项选择题

某雄黄矿工人的肺癌发病率高达234.2/10万，比该省省会居民高出25.1倍，比县居民高101.8倍。

对该毒物的长期接触还可能发生哪种肿瘤

A．肝血管肉瘤

B．白血病

C．皮肤癌

D．胃癌

E．鼻窦癌

答案

参考答案：C

解析：砷化物除了可引起肺癌以外，还可以引起皮肤癌。

单项选择题

某债券为10年期普通债券，票面价值100元，票面利率5%，每半年付息一次，小张在债券发行一年后购入该债券，购入时的到期收益率为8%，则小张购买该债券的价格为（）元。

A.81

B.86

C.92

D.102

填空题

用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。

on first give change it letter while because cheap fast

The British love sending text messages. They send more than 2.5 billion every month. And most people now understand the language of text, with its numbers and missing   小题1: . In fact, when a student at a Scottish school wrote the whole article “in txt”, his teacher    小题2:   him “C+ 4 f4t ” (“C+ for effort ”).
Although texting(发短信) is a   小题3:  way of staying in touch with your friends, it can also bring problems. In 2005, a British teenager became the   小题4:   person in the world to receive treatment for an addiction(沉溺) to text messaging. In one year, the nineteen-year-old spent about ￡4,500    小题5:  texts.
For some people, text messaging has   小题6: their lives. For example, James Trusler from Sussex in England travels around the world taking part in texting competitions and TV shows. He’s the world’s   小题7: texter and recently set a new world record    小题8:  he was appearing on Australian TV. He texted:“The razor-toothed piranhas of the genera Serraslmus and Pygocentrus are the most ferocious freshwater fish in the world. In reality they seldom attack a human.”   小题9:  took him 67 seconds. James sends a lot of text messages—about 2,500 a month. But he doesn’t get big bills   小题10:  he works for a large mobile phone company!