皮皮学,免费搜题
登录
搜题
【单选题】
下列光电器件是基于光导效应的是
A.
光电管
B.
光电池
C.
光敏电阻
D.
光敏二极管
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
【多选题】提高制皂油脂质量可通过( )等工艺完成。
A.
脱胶(水洗)
B.
脱色
C.
碱炼
D.
脱臭
E.
氢化
【判断题】胆固醇是一种可以被皂化的脂质。 ( )
A.
正确
B.
错误
【简答题】选词填空 1. Sally Can I borrow your red dress? I don’t have anything to wear tonight. Tanya OK, but on one condition. If anything ( happen\happens\will happen ) to it, you ( buy\buys\will buy ) me a new o...
【简答题】皂化脂质
【判断题】油脂皂化值是在规定条件下皂化1g油脂所需氢氧化钠的质量。
A.
正确
B.
错误
【单选题】评价是另一个护理程序的开始,评价可理解为( )
A.
再评价
B.
制定计划
C.
实施计划
D.
再评估
【简答题】胆固醇是一种可以被皂化的脂质。(    )
【单选题】Listen to conversation 2 and choose the best way to complete the sentences. 1. Janet wants to accept Tanya's invitation because____.
A.
Joe thinks Tanya is a friend of Janet's
B.
she doesn't have any money to buy clothes
C.
Tanya has offered her free tickets
D.
Tanya came up to Janet and started talking about fashion
【单选题】听力原文:W: You will go down slow, Dan, I suppose? M: Why, Tanya, it isn't a brave bouncing girl like you who asks that? Why, I always go down at full gallop. There's nothing like it for raising your spir...
A.
Husband and wife.
B.
A driver and passenger.
C.
Boyfriend and girlfriend.
D.
Customer and salesman.
【多选题】化学脱脂就是利用碱溶液对皂化性油脂的皂化作用或表面活性物质对非皂化性油脂的乳化作用,除去工件表面上各种油污的过程。下面哪些属于化学脱脂用品?
A.
汽油
B.
氢氧化钠
C.
水玻璃
D.
乳化剂
相关题目: