人心果、木瓜、枇杷等属于（）。
A、核果类
B、仁果类
C、坚果类
D、浆果类
参考答案：D
China has got a good _____ for fighting against the flu with its careful and smooth organization. [ ]
A. reputation
B. influence
C. impression
D. knowledge
用来校验开关设备的动、热稳定性的参数是（）。
A.两相短路电流
B.三相短路电流
C.启动电流
