库房门最好使用（）材料制成。
A、木制
B、防盗、防火
C、铝合金
D、不防火
参考答案：B
小明的钱包内有百元钞票x张，拾元钞票y张（x、y均小于10），则小明钱包内的钱数是______元．
— Did you take enough money with you?
— No, I need ________ I thought I would. [ ]
A. not so much as
B. as much as
C. much more than
D. much less than
