下列检索式描述错误的是 A: subjterm(3304) and "TITLE-ABS-KEY"(learning) B: ①((education* or instructional) w/1 (technique or technology)) and ("class participation" or "classroom participation" or "student participation")<br/>②1.((education* or instructional) w/1 (technique or technology)) and ((class* w/1 participation) or "student participation")<br/>①和②的检索结果一样。 C: 检索“白血病的诊断和治疗”可输入检索式为 leukemia and (diagnosis or therapy) D: (hig* w/3 (tech * or educat*)or part*) not ( pra* or class) w/9 marxism 检索式正确。

写出下面程序运行结果。 public class Demo { public static void main(String args[]) { int x = 9, y = 11, z = 8; int t, w; t = x > y ? x : y + x; w = t > z ? t : z; System.out.println(w); } }

给出下面的代码段：（）public class Base{int w， x，...y=b处写下如下哪几个代码是正确的？（）

以下程序的输出结果：（ ） A: <;class 'dict'>;<;class 'dict_values'>;<;class 'dict_keys'>; B: <;class 'dict'>; C: <;class 'dict'>;<;class 'dict'>;<;class 'dict'>; D: <;class 'dict'>;NoneNone

There are different classes in the cabin, economy class, first class and ( ) . A: business class B: VIP class C: special class D: normal class

下面代码的输出结果是（）。 >;>;>; s = {} >;>;>; type(s) >;>;>; s = &#91;&#93; >;>;>; type(s) >;>;>; s = () >;>;>; type(s) A: <;class 'tuple'>; <;class 'list'>; <;class 'dict'>; B: <;class 'dict'>; <;class 'list'>;<;class 'tuple'>; C: <;class 'dict'>;<;class 'list'>;<;class 'set'>; D: lt;class 'tuple'>;<;class 'dict'>;<;class 'list'>;

如果有，指出下面类模板声明（或声明对）中哪些是非法的。（a）template <class Type> class C1；template <class Type，int size> class C1；（b）template <class T，U，class V> class C2；（c）template <class C1，typename C2>class C3（}；（d）template <typename myT，class myr> class C4{}；（e）template <class Type，int*ptr> class C5；template <class T，int*pi>class C5；

Which class will Bruce take? A: First class B: Business class C: Economy class

在下面的类声明中，错误的是 A: class AA{ BB b; }; class BB{ AA a; }; B: class AA{ AA *a; }; class BB{ BB &b; }; C: class BB; class AA{ BB *b; }; class BB{ AA a; }; D: class AA; class BB{ AA &a; }; class AA{ BB b; };

Class A has a higher enrollment than Class B. Class C has a lower enrollment than Class B. Therefore, Class A has a lower enrollment than Class C.