依据《担保法》的规定，保证的责任方式有（）。
A.一般保证
B.专项责任保证
C.特别保证
D.连带责任保证
E.全部责任保证
参考答案：A, D
(2013·河北普通高中高三质量监测)Sitting at the corner of the meeting room, he looked sad because there were so many problems ________.
A．remaining to settle
B．remained settling
C．remaining to be settled
D．remained to be settled
什么是一回路冷却剂系统的“可识别泄漏”和“不可识别泄漏”？什么是“总泄漏率”？
