| Do you find getting up in the morning
so difficult that it’s painful This might be called laziness, but Dr. Kleitman
has a new explanation. He has proved that everyone has a daily energy
cycle. During the hours when you labor through your work may say that you’re "hot". That’s true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people the peak comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues (独白) as: "Get up, John! You’ll be late for work again!" The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarreling ends when husbands and wives realize what these energy cycles mean, and which cycle each m A. getting off to work with a minimum effort helps save one’s energy B. many couples quarrel because they don’t understand the energy cycle C. people can’t change the energy cycle, but they can adapt themselves to it D. Dr. Kleitman can explain why people feel most energetic at different time in a day [判断题]不得使用罐式专用车辆运输普通货物。
A.正确 B.错误 [单项选择]以下是关于图像文件格式的叙述，错误的是______。
A. JPEG文件交换格式是图像数据经JPEG算法压缩后，按一定的语法规则组成的 B. PNG是一种图像文件的存储格式 C. GIF文件格式在HTML文档中得到广泛的使用 D. TIFF文件仅支持RLC编码 [填空题]管理原则：坚持 与 并重， 与 相结合，强化安全责任和重点工作落实。
[单选题]兆欧表应根据被测电气设备的( )来选择
A.额定功率 B.额定电压 C.额定电阻 D.额定电流 [单项选择]收纳胸上部、乳房、上肢引流区淋巴液的是（）
A. 颈内静脉淋巴结 B. 颈前区淋巴结 C. 颈外侧浅淋巴结 D. 副神经淋巴结 E. 锁骨上淋巴结 [单选题]合同规定有履约保证金的，物资供应管理单位应要求供应商在物资合同签订后（ ）内提供（合同另有约定的按合同约定）。
A.30日 B.40日 C.60日 D.90日 [单选题]( )直流电动机降低电枢电压调速时，转速只能从额定转速( )。
A.升高一倍 B.往下降 C.往上升 D.开始反转 [单项选择]信息系统的性能通过下列哪些指标进行评价？
A. 系统可靠性、系统可维护性、系统可扩充性、系统可移植性、系统适应性和系统安全保密性 B. 系统可靠性、系统效率、系统可维护性、系统可扩充性、系统可移植性、系统适应性和系统安全保密性 C. 系统可靠性、系统效率、系统可扩充性、系统可移植性、系统适应性和系统安全保密性 D. 系统可靠性、系统可维护性、系统可扩充性和系统可移植性 我来回答: 提交
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