| The period of adolescence, i.e., the
person between childhood and adulthood, may be long or short, depending on
social expectations and on society’s definition as to what constitutes maturity
and adulthood. In primitive societies adolescence is frequently a relatively
short period of time, while in industrial societies with patterns of prolonged
education coupled with laws against child labor, the period of adolescence is
much longer and may include most of the second decade of one’s life.
Furthermore, the length of the adolescent period and the definition of adulthood
status may change in a given society as social and economic conditions change.
Examples of this type of change are the disappearance of the frontier in the
latter part of the nineteenth century in the United States, and more
universally, the industrialization of an agricultural society. A. (A) in the late 19th century in the United States the dividing line between adolescence and adulthood no longer existed B. (B) no one can marry without the permission of his parents until the age of twenty-one C. (C) one is considered to have reached adulthood when he has a driver’s license D. (D) one is not free from the restriction of child labor laws until he can join the army [单项选择]李某犯走私罪被人民法院判处无期徒刑并处没收财产，在以没收的财产偿还债务时应当如何处理？（）
A. 只偿还立案以前所负的正当债务 B. 只偿还案件侦察终结以前所负的正当债务 C. 只偿还查封财产以前所负的正当债务 D. 只偿还没收财产以前所负的正当债务 [判断题]频带利用率是指单位频带内的传输速率。（ ）
A.正确 B.错误 [判断题]兼职承担应轮换岗位全部或部分工作内容的人员只需交接部分岗位职责，不属于轮岗
A.正确 B.错误 [简答题]
Systems of Equations These questions will test your knowledge of operations involving systems of equations. Solve the following systems of equations.
[单选题]通电试验过程中，（ ）不得中途离开。
A.试验人员 B.监护人员 C.试验和监护人员 D.工作负责人 E.略 我来回答: 提交
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