中国石油大学 / 中石油
正确率:100%
31. The harder the shrub is to grow, ______.
A、the more higher price it
B、the higher price it is
C、the higher the price is
D、the higher is the price
A、the more higher price it
B、the higher price it is
C、the higher the price is
D、the higher is the price
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