问题
单项选择题
We are anxious to（）the market for our Antimony Trioxide，which at present enjoys alimited sale in Europe.
A.increase
B.enlarge
C.expand
D.extend
答案
参考答案：C
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We are anxious to（）the market for our Antimony Trioxide，which at present enjoys alimited sale in Europe.
A.increase
B.enlarge
C.expand
D.extend
参考答案：C