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问题 单项选择题

《砌体结构工程施工质量验收规范>GB50203-2011中对水泥的规定有一款为"不同品种的水泥，不得混合使用"是（）。

A.一般性条文

B.条文说明

C.注释

D.强制性条文

答案

参考答案：D

填空题

果酒酿造中，酒精发酵的主要副产物有：（）、乙醛、醋酸、琥珀酸。
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补全对话，情景问答
从方框内选出相对应的答语。
( )1. Is this your bag?   
(     )2. What's her name?    
(     )3. How do you spell "book"?  
(     )4. I'm Gina.                           
(     )5. This is your pencil.                       
(     )6.What's his name?                   
(     )7. What's your phone number?             
(     )8. Hello! I'm Mary.                      
(     )9.What's your family name?            
(     )10. What's this in English?                  
A. It's Smith.
B. Hi! I'm Jim.
C. It's a pencil sharpener.
D. His name is Ben.
E. It's 897-235.
F. OK.  Thank you.
G. I'm Jenny.
H. B-O-O-K.
I. Yes, it's my bag.
J. Her name is Sonia.
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