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题目内容
（河北科技师范学院-大学英语Ⅱ）
We haven.t found any evidence so far which shows that the new vehicles will cause as much pollution as ________ petrol vehicles.（1.0分）1.0 分
A、
are
B、
is
C、
do
D、
has
A、
are
B、
is
C、
do
D、
has
参考答案
