质押合同自( )生效。
A．质权人取得质物所有权时B．质物脱离所有权人控制时C．质物移交与质权人占有时D．出质人交付质物时
参考答案：C
下述哪种膀胱肿瘤情况可采用经 * * 电切或电灼（）
A.肿瘤小于2cm，有蒂，单发或为数不多
B.肿瘤侵犯膀胱肌层
C.多发且基底较宽
D.复发且恶性程度增加
E.肿瘤边缘距输尿管口不足2cm
He______the leader of the Model Group in our factory.
A．has just been appointed B．has just appointed C．just appointed D．has just being appointed
