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【单选题】
下列哪些语句中定义的变量属于引用类型变量?( )A.
IInformation info; // IInformation 为一接口类型名
B.
MyStruct x; //MyStruct 为一结构类型名
C.
int[] arr
D.
MyEnum y; //MyEnum 为已定义的枚举类型名
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【单选题】The question of what children learn and how they should learn it is continually being debated and redebated. Nobody dares any longer to defend the old system, the learning of lessons parrot-fashion an...
A.
children were made to learn passively
B.
children were spoiled
C.
children were treated as grown-ups
D.
too much grammar was taught to children
【单选题】Scientists are doing research on the way______.
A.
children learn to speak
B.
children learning to speak
C.
which children learn to speak
D.
how children learn to speak
【简答题】The questions of what children learn, and how they should learn it, is continually being debated and reheated. Nobody dares any longer to defend the old system, the parrot – fashion (way of learning b...
【单选题】具有下列各基因型的个体中,属于纯合子的是 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
、 Yr
B.
AaBB
C.
YYrr
D.
Aa prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
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