问题
选择题
The factory has produced ____ computers as they did last year.
A．twice as many
B．twice as much
C．as twice as many
D．as twice much
答案
答案：A
考查倍数表达。倍数表达的基本结构：
1. “A+倍数+形容词或副词的比较级+than+B”，表示“A比B大（长、高、宽等）多少倍”。
2.“A+倍数+as+形容词或副词的原级+as+B”，表示“A正好是B的多少倍”。
3. “A+倍数+the size/height/length/width， etc+of+B”，表示“A正好是B的多少倍”。
4. “……times+what+从句”。
故选A，其它结构有误。
