A) outsetB) outbreakC) breakthroughD) breakdown
A) outset
B) outbreak
C) breakthrough
D) breakdown
相关考题：
Things made of glass, plastic and tin are ______ hard ______ break down. A.very, toB.too, as toC.too, toD.so, to
The important thing is that this is a major breakthrough. “breakthrough” here means an important development or achievement. () 此题为判断题(对，错)。
1940年4月,某地80人出席了在教堂举行的晚餐,第二天有46人出现了恶心、呕吐、腹泻和腹痛,体温正常,被诊断为胃肠炎。这个事件可以称为() A、epidemicB、sporadicC、rapidfluctuationD、outbreak
The important thing is that this is a major breakthrough. “breakthrough” here means an important development or achievement.A对B错
3、A、B、C、D为任意集合，以下正确的是A．(A∪B)´(C∪D) = (A´C)∪(B´D)B．(A-B)´(C-D) = (A´C)-(B´D)C．(A∩B)´(C∩D) = (A´C)∩(B´D)D．(AÅB)´(CÅD) = (A´C) Å (B´D)
A、B、C、D为任意集合，以下正确的是A．(A∪B)´(C∪D) = (A´C)∪(B´D)B．(A-B)´(C-D) = (A´C)-(B´D)C．(A∩B)´(C∩D) = (A´C)∩(B´D)D．(AÅB)´(CÅD) = (A´C) Å (B´D)