保管期限届满而估价服务的行为尚未了结的估价资料，应当保管到估价服务的行为了结为止。（）
参考答案：对
What we want is an environmentally friendly car, especially ____ is good on gas. [ ]
A. one
B. one which
C. which
D. one that
目前用于治疗血吸虫病的首选药物是( )
A．酒石酸锑钾B．呋喃丙胺C．六氯对二钾苯D．青蒿琥酯E．吡喹酮
