风险自留就是将风险留给自己承担，是从企业( )的角度应对风险。
A．承担风险能力
B．内部财务
C．风险转移的可能性
D．对市场投资前景
参考答案：B
— It took me ten years to build up my business, and it almost killed me.
— Well, you know what they say. _____. [ ]
A. There is no smoke without fire
B. Practice makes perfect
C. All roads lead to Rome
D. No pains, no gains
下列哪项不是基托折断的原因（）
A.基托过薄
B.基托内有气泡
C.基托与黏膜不密合
D.义齿制作过程中模型磨损
E.人工牙排列在牙槽嵴顶以外
