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【多选题】
为了减少和控制误差,在构造算法时,通常要注意哪些原则( )A.
避免大数吃掉小数
B.
避免两个相近的数相减
C.
避免小分母
D.
选用稳定的算法
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反馈参考答案：
举一反三
【单选题】听力原文：W: Will you tell us about the new intelligent house your company has built? It promises to be a model for houses of the future. M: Certainly. The idea is not to have a house full of gadgets. This...
A.
A robot.
B.
Some household gadgets.
C.
An intelligent house.
D.
A new fire alarm system.
【单选题】听力原文：W: Bob,will you tell me something about the new intelligent house your company has just built?I heard that it promises to be a model for houses of the future. M: Certainly.The idea is not to have...
A.
It is a house full of cleverly-designed device.
B.
It can help people live a much easier life.
C.
It is the most comfortable house available.
D.
It expresses the newest architectural style.
【单选题】What did Mr. Obama admit in the news item?
A.
Americans built support for la w s forbidding voter discrimination.
B.
D iscrimination against Af ri can-Ame ri can v oters came to an end
C.
Existence of discrimination in the United States continued.
D.
Activists helped c lear the path he followed to the White House.
【单选题】The House of the Gladiators was built
A.
in 79 Ad.
B.
in the 1950s.
C.
during the Second World War.
D.
in about 10 Ad.
【单选题】听力原文：M: Hi, Catherine. Haven't seen you for a long time. How is your vocation? W: Terrific ! I went to Washington D. C. to visit my cousin. I saw the Jefferson Memorial, the Lincoln Memorial, and the ...
A.
1800.
B.
1600.
C.
1812
D.
1884
【简答题】profesor的阴性复数形式为（）
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