阅读理解。

    My name is Dan and I have two brothers,Bob and Ray. We like hamburgers for lunch. Boband I like

French fries, but Ray doesn't. I don'tlike eggs for breakfast, but Bob and Ray often eatthem. I like fruit

for breakfast. We really likechicken and salad.

1.______doesn't like French fries.    

A. Dan                        

B. Bob    

C. Ray    

D. Dan and Bob

2.______like hamburgers for lunch.   

A. Dan and Bob    

B. Bob and Ray    

C. Dan, Bob and Ray    

D. Dan and Ray

3.______doesn't like eggs for breakfast.    

A. Bob and Ray    

B. Dan    

C. Bob    

D. Ray

4.______likes fruit for breakfast.   

A. Bob and Ray    

B. Dan    

C. Bob    

D. Ray

5.______like chicken.    

A. Dan and Bob    

B. Bob and Ray    

C. Dan and Ray    

D. Dan, Bob and Ray

对蒸汽发生器传热管破裂（SGTR）有哪些放射性检测的方法？