题目内容

Scala语言中，关于List的定义。不正确的是？

A. val list = List(1,2,3)
B. val list = List[Int](1,2,3)
C. val list = List[String](‘a’,’b’,’c’)
D. val list = List[String]()

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关于数组val a = Array(1,2,3)下列说法错误的是？

A. val b = 2 * a // b 等于 Array(2,4,6)
B. val b = a.map(_*2) // b 等于 Array(2,4,6)
C. val b = for(elem <- a) yield 2 * elem // b 等于 Array(2,4,6)
D. val b = for(elem <- a if elem % 2 == 0) yield 2 * elem // b 等于 Array(4)

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Dose the writer support the idea that "one's personality can be summed up in a word"? ( Para.2 ) What evidence in the text can you find to support your answer?

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Of the two main factors (heredity and environment) that influence one's personality, which one has a greater influence?

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How does family environment affect a child's personality?

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Scala语言中，关于List的定义。不正确的是？

A. val list = List(1,2,3) B. val list = List[Int](1,2,3) C. val list = List[String](‘a’,’b’,’c’) D. val list = List[String]()

关于数组val a = Array(1,2,3)下列说法错误的是？

Dose the writer support the idea that "one's personality can be summed up in a word"? ( Para.2 ) What evidence in the text can you find to support your answer?

Of the two main factors (heredity and environment) that influence one's personality, which one has a greater influence?

How does family environment affect a child's personality?

A. val list = List(1,2,3)
B. val list = List[Int](1,2,3)
C. val list = List[String](‘a’,’b’,’c’)
D. val list = List[String]()