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【判断题】
稳压管的主要参数有，稳定电压、电压温度系数、静态电阻、稳定电流、最大允许耗散功率。()A.
正确
B.
错误
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举一反三
【简答题】在PIC16F877单片机ADC转换模块中,配置有8个模拟量输入通道,分别由______和______两个端口中的引脚承担.
【单选题】对发绀的描述，你认为下列哪项是错误的
A.
发绀是指血中还原血红蛋白增多
B.
广义的发绀还包括高铁血红蛋白血症和硫化血红蛋白血症
C.
中心性发绀可分为：肺性发绀和心性混合性发绀
D.
周围性发绀可分为：瘀血性和缺血性周围性发绀
E.
真性红细胞增多症所致发绀不属于周围性发绀
【简答题】完形填空。 Now we live in the 'computer age'. People like scientists, teachers, writers and even students use computers to do much 1 . But more than 30 years ago, 2 couldn't do much. They were very big and...
【单选题】The old woman has three sons ,and ______ are studying abroad now.
A.
two of them
B.
two of who
C.
two of whom
D.
of whom two
【简答题】阅读理解。 Chinese people are now living happier and longer than before. According to the latest study, the number of people over 60 years old is 130 million, up 10 percent of the whole population, ...
【单选题】Methods and techniques used to examine cost and technical data are called feasibility studies. The economic aspects of a feasibility study include interest rates, present worth factors, operating cost...
A.
. Capitalization costs.
B.
. Technical skill requirements.
C.
. Technology forecasting.
D.
. Strategic marketing intelce.
E.
. All of the above.
【单选题】下列关于温斯顿虚构出来的奥吉尔维同志的形象描述不正确的是
A.
不沾烟酒，没有任何其他文娱活动
B.
立誓过独身生活，认为结婚和照顾家庭与全部奉公不相容
C.
除了英社原则以外没有别的谈话题目
D.
除了击败欧亚国敌人和搜捕间谍、破坏分子、思想犯、叛国犯以外还有其他的生活目的
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