题目内容

According to the professor, what is the basic philosophical foundation of the nation?

A. John Locke"s three concepts.
B. Voltaire"s first Amendment.
C. Montesquieu"s Constitution.
D. Machiavelli and Hobbe.

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患者,女性,22岁,心悸、手抖、怕热、 烦躁5个月,查体:轻度突眼,甲状腺l度肿大,心率130次/分,手指细震颤(): T3、T4高于正常,TSH降低。该患者首选的治疗是

A. 抗甲状腺药物
B. 手术切除部分甲状腺
C. 放射性核素治疗
D. 切除甲状旁腺
E. 抗甲状腺药物治疗稳定后放射性碘治疗

双极性权电阻网络DAC如图所示,图中模拟开关在Di=0时,接向地线;Di=1时,接向-8V。试填写输入D和输出电压Vo的真值表并说明该双极性DAC是正参考还是负参考?若要改变参考极性,电路应作哪些变化?

What can be inferred based on the description of the comets center as a potato?

A. The comet has holes and bulbs like a potato.
B. The surface of the comet is too smooth to resemble a potato.
C. The comet is as smooth as people expected.
D. Some parts of the comet haven"t been smoothed.

已知某DAC的最小分辨电压VLSB=40mV,最大满量程输出电压VFSR=10.2V,试求该电路输入二进制数字量位数n为多少?基准电压VREF为多少?

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