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【多选题】
对筛检的描述正确的是
A.
筛检是全科医生为达到早期发现所必须进行的工作
B.
筛检可快速把有潜在疾病但表面健康的人与无病的人区别开来
C.
筛检既检查又是诊断
D.
筛检一般用于慢性病
E.
筛检和诊断的目的相同
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举一反三
【单选题】Beginning in October, more than 13,000 McDonald's restaurants in America will use a new kind of cooking oil. McDonald's aims to make its French fries and other fried foods healthier. The change will n...
A.
McDonald's is a pioneer in food products
B.
McDonald's is enlarging its restaurants in the world
C.
fried foods can't keep up with the development of moden society
D.
McDonald's is to use new cooking oil
【单选题】Jack had a fever, he finishing doing his homework yesterday.
A.
Although; but
B.
But; although
C.
Although; /
D.
/;although
【判断题】如果动态电路是稳定的,则系统函数的极点位于 S 平面的左半平面和虚轴上。
A.
正确
B.
错误
【单选题】Why Don Thompson emphasized McDonald s would be focusing on its core products?
A.
New products taste awful and weird.
B.
Core products are kept quality easily.
C.
New products benefit the company little.
D.
Core products are praised by customers.
【判断题】模拟滤波器的系统函数Ha(s)的极点位于S平面的左半平面可保证系统的稳定性。
A.
正确
B.
错误
【判断题】线性时不变连续时间系统是稳定系统的充分且必要条件是系统函数的极点位于S平面的左半平面。
A.
正确
B.
错误
【单选题】的极点位于s 平面的
A.
左半平面
B.
左半平面的负实轴上
C.
右半平面
D.
轴上
【单选题】Although he had not studiedvery hard, John had () hope of passing the exam.
A.
little
B.
any
C.
a little
D.
some
【简答题】阅读理解。 McDonald's was founded in California in 1940 by brothers Mac and Dick McDonald. McDonald's became a national chain in the 1960s and became well--known for its marketing symbols: a clown (小丑) cal...
【简答题】若系统函数 的极点位于s平面的左半平面,则冲激响应 ____(填增长或衰减);若系统函数 的极点位于s平面的右半平面,则冲激响应 ____(填增长或衰减);
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