在受拉构件中由于纵筋拉力的存在，构件的抗剪能力将（）。 A.难以测定 B.降低 C.

Choose the best choice from A to F to finish the dialogue. You have one more answer.
Each choice should be used only once.
J — Jenny       B — Bernard
J: Bernard,   51  
B: It’s June 19th. Oh, it’s Father’s Day.
J: You are right. It’s a day to show love and thanks to fathers.
B: Oh, yes.   52  
J: Well, I’ve bought a shirt for dad.
B: A shirt. What color?
J: Black.   53  
B: That’s a nice present. Hmm…  54  
J: Why not make a cake?
B: Good idea.   55  

A. Let’s start now.                                                  B. Then how shall we celebrate this special day? C. what’s the date today?                                   D. I don’t know what I should do for dad. E. what day is it today?                                        F. That’s dad’s favorite color.

 

 
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