从II栏中找出与I栏各句相对应的答语。

( )1. Could I speak to Sam, please?        

( )2. Would you like to come to my birthday party tonight?        

( )3. May I come in?        

( )4. What about going out of a walk?        

( )5. Shall I open the door?        

( )6. Will you (please) lend your pen to me?                               

A. Good idea!        

B. Yes, please.        

C. Certainly. Hold on,please.        

D. I'd love to.        

E. Sorry,I'm afraid not.        

F. Come in, please.

某一实验室血糖在参加室间质量评价活动，五个标本均在可接受范围之内，得分为100％，但五标本的偏倚均为正偏倚。可提示测定系统存在误差类型（）

A.随机误差

B.小的系统误差

C.操作误差

D.过失误差

E.试剂误差