发球区宽9米，位置在（）后。
A.端线
B.边线
C.中线
参考答案：A
同一品牌两种规格牙膏的售价情况如下：120克的每支9元，160克的每支11.2元．你认为买哪种规格的牙膏比较合算？为什么？
The small village is said（）in a battle during World War 11.
A. to have been destroyed
B. to be destroyed
C. to destroyed
D. to have destroyed
