| What makes teenagers moody and
impulsive The answer used to be raging hormones plus a dearth of(短缺) life
experiences. But three years ago this simple equation was blown apart by
evidence from brain scans of strange goings-on behind the teenage
forehead. Till then, scientists had thought the brain’s internal structure was fixed by the end of childhood. The new scans showed the brain’s frontal cortex(皮层) thickening just before puberty(青春期), then slowly shrinking back to normal during the teenage years. Suddenly, the erratic huffiness(发怒) seemed to make sense: the teenage brain was a work in progress, a house in the process of being rewired. Now comes more evidence of neural turmoil. According to psychologists in California, the speed with which youngsters can read the emotional expressions on people’s faces dips suddenly at A. it can take clearer pictures of teenagers’ brains B. scientists will meet with fewer, dangers in their research work C. it may help scientists understand better the mental illness in teenagers D. it may enable teenagers to experience fewer dangers during teenager years [单项选择]蝇传播疾病的主要方式是
A. 发育式 B. 增殖式 C. 发育增殖式 D. 经卵传递式 E. 机械性传播 [单选题]一个词语通常有两种用法，一种用法是用这个词去表达其所表达的对象，一种用法是用这个词表达其自身，其中，前一种用法通常表达的就是词语的意义，一般称之为指称用法；后一种用法通常表达的是这个词语的形式，一般称之为自名用法。根据上述定义，下列加黑的词属于自名用法的是( )。
A.女性一般喜欢粉色 B.大象一般生活在密林之中 C.“其它”，现在一般都使用“其他” D.“商品”指的是用来交换的劳动产品 [单选题]夜间试验列车自动制动机，发车人员要求司机制动时，白色灯光（ ）。
A.(A) 高举 B.(B) 左右摇动 C.(C) 上下摇动 D.(D) 在下部左右摇动 [多选题]在试验和推广（ ）的同时，应制定相应的安全措施，经本单位批准后执行。
A. A.新技术 B.B.新工艺 C.C.新设备 D.D.新材料 [填空题]Culture is the sum total of all the traditions, customs, beliefs, and ways of life of a given group of human beings. In this (36) , every group has a culture, however savage. undeveloped, or uncivilized it may seem to us.
To the professional anthropologist (人类学家), there is no intrinsic (37) of one culture over another, just as to the professional linguist there is no intrinsic hierarchy (等级制度) among languages. People once thought of the languages of backward groups as (38) and undeveloped forms of speech, consisting largely of grunts and groans. While it is possible that language in general began as a series of grunts and groans, it is a fact established by the study of "backward" languages that no spoken tongue answers that description today. Most languages of uncivilized groups are, by our most severe standards, extremely complex, delicate, and ingenious pieces of machinery for the (39) of ideas. They fall behind our Western la [判断题]旅行社组织出境旅游，应当制作安全信息卡，安全信息卡使用中文或者目的地的官方语言（或者英文）填写。（）
A.正确 B.错误 [单项选择]承销金额超过人民币_____元，承销团成员超过____可设2~3副主承销商。
A. 5千万， 8家 B. 5千万 ， 10家 C. 3亿 8家 D. 3亿 ， 10家 [判断题]进入作业现场应正确佩戴安全帽，现场作业人员应穿全棉长袖工作服、绝缘鞋。
A.正确 B.错误 [单项选择]男性，60岁，发热伴皮疹瘙痒2周。体检：两侧颈部淋巴结均明显肿大，脾肋下5cm，胸骨压痛，CT显示纵隔淋巴结明显肿大。检验：血红蛋白量85g／L，白细胞数3．5×109／L，血小板数45×109／L，骨髓检查异常细胞约占34％，其胞体明显大小不一（大者如巨核细胞大小）。首先考虑下列哪一种疾病（）。
A. 淋巴瘤白血病 B. 恶性组织细胞病 C. 急性白血病 D. 多发性骨髓瘤 E. 骨髓增生异常综合征 [判断题]弃井作业时用水泥将产生或可能产生危险浓度硫化氢的整个地层封死，并按有关规定和程序实施弃井作业。
A.正确 B.错误 [单选题]ETC出口费显显示“未插卡或松动 请插卡通行”,正确的操作为( )。
A.让司机重新插卡,并用手持机扫描 B.判车型,刷卡操作 C.转混合车道处理 [单项选择]先将群体分组，再在组内进行随机取样的方法是（）。
A. 简单随机抽样 B. 系统抽样 C. 分组抽样 D. 分层抽样 [单项选择]当过失点达到十五分时，牌照要吊销三十天恢复驾驶后的分数，将会（）。
A. 减到七分 B. 减到零分 C. 减到五分 D. 以上全不是 [单选题]有限空间作业时，严禁随意蹬踩电缆或电缆托架、托板等附属设备。
A.正确 B.错误 C.略 D.略 E.略 F.略 我来回答: 提交
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