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【简答题】
Listen to the text for the first time, focus on the global idea of the passage and then choose the right answers to the questions you hear
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反馈参考答案：
举一反三
【单选题】What aspects can nanotechnology be applied?
A.
health
B.
housing
C.
electronic products
D.
All of above
【单选题】What aspects can nanotechnology be applied?
A.
health
B.
housing
C.
electronic product
D.
All of above
【单选题】( )We were walking along the river ________ we heard a cry for help.
A.
because
B.
when
C.
while
D.
if
【单选题】What aspects can nanotechnology be applied?
A.
electronic products
B.
housing
C.
health
D.
All of above
【单选题】假设类Myclass有两个数据成员int m和float f,那么类Myclass的构造函数声明和实现不正确的是( )
A.
Myclass(){m=0;f=0;}
B.
Myclass(int a=3, float b){m=a;f=b;}
C.
Myclass(Myclass &k){m=k.m;f=k.f;}
D.
Myclass(int a,float b):m(a),f(b){}
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