皮皮学，免费搜题
登录
搜题
【单选题】
24关于电力拖动起货机的电动机与控制设备，说法正确的是 。A.
起货机的电动机机械特性较硬，保证无论负载重与轻，运行速度差不多
B.
起货机的电动机过载性能好，起动力矩较大
C.
起货机的电动机调速范围一般较窄
D.
一般选用自复位按钮作为主令操纵电器
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】If I say I don't think much of this book, this means that ______.
A.
I never read it
B.
I seldom think about it
C.
I have no idea of it
D.
I have a poor opinion of it
【单选题】I am a computer expert. I have been in the field for only a short time. I never learned much in the way of science or math. And I am quite puzzled by things like engineering or electronics. Then why a...
A.
computer experts
B.
writers about computers
C.
computer scientists
D.
skilled users of computers
【简答题】小范围静脉曲张或术后残余病变可作
相关题目：