灵芝的药用部位为
A．主产于河南B．主产于山西、河南、河北C．主产于甘肃D．主产于四川、湖北E．主产于江苏、湖北、河南
参考答案：C
I wish I _____ a big house.[ ]
A. have
B. had
C. to have
D. having
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