皮皮学，免费搜题
登录
搜题
【单选题】
Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.A.
after torque cause line pull to exceed the rated capacity of the winch
B.
before the line pull reaches the rated capacity of the winch
C.
when the line pull reaches the breaking strengh of the fall
D.
before the safe working load of the fall is reached
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
【简答题】Direction: Read the following paragraph and fill in the blank with the number. Paragraph Four: 1. Travel for business is an activity that can have a variety of different purposes, from scouting new bu...
【简答题】性质实验报告一般采取 形式，分四栏来完成，分别是 、 、 、 。
【简答题】已知某只基金的投资资产中现金持有量较小，则该只基金最有可能是一只（ ）。
【简答题】Paragraph 2 What does scientific literature tell us about the idea that body language reflects our real feelings? One experiment carried out about 10 years ago by Ross Buck from Carnegie-Mellon Univer...
【多选题】Which of the following statements about species are correct?
A.
A species is a class of plants or animals whose members have the same main characteristics and are able to breed with each other.
B.
Species is a naturally existing population of similar organisms that usually interbreed only among themselves, and are given a unique, latinized binomial name to distinguish them from all other creatures.
C.
Species is any of the taxonomic groups into which a genus is divided, the members of which are capable of interbreeding: often containing subspecies, varieties, or races.
D.
A species is designated in italics by the genus name followed by the specific name, for example Felis domesticus (the domestic cat).
【单选题】Do you love holidays, but hate the increase in weight that follows? You are not alone. Holidays are times for eating and celebrating, especially with the cultural foods of our heritage. With proper pl...
A.
enjoy eating and keep fit
B.
go on a diet
C.
celebrate traditional holidays
D.
choose a variety of food
相关题目：