皮皮学，免费搜题
登录
搜题
【单选题】
采用二次谐波制动原理的变压器差动保护,当二次谐波含量超过定值时( )。A.
闭锁
B.
开放
C.
经给定延时后闭锁
D.
以上均不正确
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 you want to understand the details in the article, which reading skill you should use?
A.
scanning
B.
skimming
C.
intensive reading
【单选题】If you use scanning skill of this topic in the unit, what kind of information should you search for during reading?
A.
Name
B.
figure
C.
Places
D.
All of them
【单选题】___ Flugzeug bist du geflogen? Mit einer Boeing 707?
A.
Mit welchem
B.
Mit was für ein
C.
Mit was für einem
【多选题】Directions: Fill in the blanks by selecting suitable words from the word bank. Each word in the bank is identified by a letter. Please choose the corresponding letter for each item. You may not use an...
A.
expensive
B.
Wonder
C.
debate
D.
admission
E.
set
F.
Wander
G.
safe
H.
addition
I.
valuable
J.
dispute K. welcome L. confidently M. sights N. demonstration O. certainly
【单选题】If you are required to summarize the general ideas of an article, which reading skill you should use?
A.
skimming
B.
scanning
相关题目：