导入numpy库并命名为np，然后建立一个数组对象a，要求分别使用Python内置函数sum，numpy库中的min函数、数组对象的sort方法，对数组a进行操作，正确的语句是（）。 A: sum(a)、min(a)、sort(a) B: sum(a)、np.min(a)、a.sort() C: sum(a)、numpy.min(a)、a.sort() D: Python.sum(a)、np.min(a)、sort(a)

a=["12","3","14","10"]。则执行a.sort(key=len)后，int(a[0])=

I was _________ hoping to leave early today. A: a sort of B: a kind of C: of a sort D: sort of

12 In the following sort algorithms, the sorting algorithm that is suitable for a large number of records keywords, but with a small number of keywords to be sorted is（ ）. A: cardinality sort B: quick Sort C: merge sort D: heap sort

I was hoping _______ to leave early today. A: a sort of B: sorts of C: sort off D: sort of

She isn’t beautiful. But she is ( ) pretty. A: a kind of B: a sort of C: sort of D: of a sort

She<br/>isn’t beautiful. But she is ________ pretty. A: a sort of B: a kind of C: of a sort D: sort of

Hadoop中， Reducer 的三个阶段是() A: Shuffle ——Sort ——Reduce B: Shuffle ——Reduce——Sort C: Reduce——Shuffle ——Sort D: Sort ——Shuffle ——Reduce

It took quite a while to all our luggage. A: sort out B: sort off C: sorting D: sort in

She isn’t beautiful. But she is<br/>________ pretty. A: of a sort B: sort of C: a<br/>sort of D: a kind of