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【单选题】
According to the second paragraph，when did cell phones actually help to reduce pedestrian and traffic fatalities?A.
Right after eell phones were invented．
B.
Before the number of eell phone users reached a critical mass．
C.
When cell phone users totaled to a certain number．
D.
When the number of cell phones decreased to a certain number．
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【简答题】Theboosters of genetically modified crops argue that these altered plants needfewer toxic pesticides.
【单选题】以下关于皮亚杰儿童认知发展阶段论的说法不正确的是( )。
A.
小学生开始有了逻辑思维能力
B.
小学生的思维具有可逆性和守恒性
C.
小学生获得了运算概念
D.
小学生学习已经不再需要具体事物的支持
【单选题】金银、珠宝、玉器、首饰、古玩、字画、邮票、艺术品、稀有金属和其他珍贵财物，堤堰、水闸、铁路、涵洞、桥梁、码头等，属于企业财产保险中的______。
A.
不提高费率的可保财产
B.
不提高费率的特约可保财产
C.
不可保财产
D.
投资保障型财产
【简答题】指出:“民生工作直接同老百姓见面、对账,来不得半点虚假,既要积极而为,又要量力而行,承诺了的就要兑现。”2015年在浙江省调研时强调,坚持群众想什么、我们就干什么,既──又──,多一些雪中送炭,使各项工作都做到愿望和效果相统一。
【单选题】In countries with long agrarian traditions, the idea of genetically altered, high-tech crop production ______.
A.
seems against nature
B.
raises all kinds of questions
C.
has environmental and safety questions
D.
brings about ethical questions
【单选题】The use of genetically altered bacteria in bioremediation to clean up oil spills is enhanced by providing which of the following
A.
oil
B.
oxygen
C.
nitrogen
D.
water
【简答题】A genetically modified organism (GMO) is any organism whose genetic material has been altered using _______________________________.
【单选题】According to the first two paragraphs, foods have been genetically altered to ______.
A.
taste more delicious
B.
cure people's ineffectiveness in immune system
C.
promote sales of peanut
D.
lower the chance to get allergy
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