为了保证车辆在低温条件下使用,可采用哪些技术措施?
参考答案:
防冻;预热保温;正确选择燃、润料;提高发动机充电电流;对燃料供给系和点火系进行必要的调整;精心驾驶和操作。
— You can repair your bike. It's not broken enough, Jack.
— I'd rather ________ a new bike than ________ it. [ ]
A. buy; repair
B. buy; to repair
C. to buy; repair
D. to buy; to repair
某企业加权平均的最低投资利润率为 15%,其下设的甲投资中心投资额为500万元,剩余收益为50万元,则该中心的投资利润率为 ( )。
A.30%
B.15%
C.25%
D.10%