由于生肉馅水分少、黏性足，调制时通常要加入（）。
A.油
B.水或皮冻
C.面粉
D.糖
参考答案：B
—Where are Maria and Kangkang?
—They _____ England.
A. had been in B. have gone to C. have been to
为什么要制定《煤矿安全规程》？
