题目

Are you shy? If you are, you are not alone. In fact, nearly 50% of people are shy, and almost 80% feel shy at some point in their lives. Why are people _______?It is found that family size might _______ people to be shy. Children with no brothers and sisters may be shy. Growing up _______, they often play by themselves. They are not able to develop the same social skills as children from big _______.Another cause of shyness could be ______. As more and more people use the Internet, they _______ less time outside, talking to people. As a result, they lose practice at conversation. _______ to ne2005年11月13日中国石油吉林石化公司双苯厂发生爆炸事故，大量硝基苯泄漏，引起松花江水污染，安全生产和环保问题再次引起人们的关注。下列叙述正确的是(    )A.硝基苯将沉入江底，对环境影响不大B.实验室制硝基苯需要用水浴加热C.硝基苯中毒是由蒸气吸入或误食引起的，与皮肤接触不会引起中毒D.只要向水中撒入大量活性炭吸附硝基苯就可以了