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【判断题】
近代形而上学唯物主义把物质等同于物质的具体形态。A.
正确
B.
错误
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举一反三
【单选题】What is the central topic of the second paragraph?
A.
Influences of economics.
B.
Importance of knowing economics.
C.
Applications of economics.
D.
Scope of economic studies.
【简答题】男性，18岁，上呼吸道感染后2天出现血尿，尿常规蛋白阴性、尿红细胞满视野。提问：首先考虑的诊断是A、急性肾小球肾炎 B、IgA肾病 C、急进性肾小球肾炎 D、尿路感染 E、尿路结石 F、慢性肾炎急性发作 提示：入院后检查扁桃体Ⅱ度肿大。提问：尿检主要表现为A、大量的均-红细胞 B、大量的红细胞，白细胞 C、大量的红细胞伴血凝块 D、大量的红细胞，变形红细胞>70％ E、大量的红细胞白细胞及上皮细胞...
【多选题】Microwave engineering pertains to the study and design of microwave circuits, components, and systems. Fundamental principles are applied to analysis, design and measurement techniques in this field. ...
A.
Design of microwave circuits, components, and systems. 【设计微波电路、元件及系统】
B.
Fundamental principles are applied to analysis, design and measurement techniques in this field. 【微波原理、应用、测试技术等】
C.
低频电子线路（ low frequency Electronic Circuit)
D.
antennas , radar , transmission lines , space based systems ( remote sensing ), measurements, microwave radiation hazards and safety measures. 【天线、雷达、传输线、遥感/遥测 等】
【简答题】At low frequencies, we cannot detect ____________________ because of stereo redundancy.
【简答题】Spread spectrum simply means that data is sent in small pieces over a number of the ( ) (A.continuous B.high C.low D.discrete ) frequencies available for use at any time in the specified range. Devi...
【单选题】What is the central idea of the declaration of independence
A.
The declaration of American independence
B.
The abolition of slavery in the United States
C.
The formal promulgation of the constitution
D.
The election produced the thirteenth president of the United States
【单选题】{ To draw the small-signal ac equivalent circuit for a common-emitter amplifier, we can treat the capacitors as ( ). (We assume that the coupling and bypass capacitors are chosen to have very low ac i...
A.
an inductor
B.
a resistor
C.
open circuits
D.
short circuits
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