题目内容
（请给出正确答案）
A.image
B.audio
C.video
D.media
如果结果不匹配，请 联系老师 获取答案
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A.wx.scanCode(Objectobject)
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D.wx.onMemoryWarning(functioncallback)
A.wx.showModal(Objectobject)
B.wx.showLoading(Objectobject)
C.wx.hideToast(Objectobject)
D.wx.hideLoading(Objectobject)
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