皮皮学，免费搜题
登录
搜题
【单选题】
绕线式三相异步电机启动性能为( )。A.
启动电流大，转矩小；
B.
启动转矩大，可以达到最大转矩，启动电流小；
C.
启动电流大，转矩大；
D.
启动电流小，转矩小；
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】There are many kinds of flowers in it.
【单选题】How many different kinds of amino acids can be found in plant and animal proteins?
A.
10
B.
20
C.
30
D.
40
【简答题】非关税壁垒(non-tariff barriers)
【简答题】 非关税壁垒(Non-Tariff Barriers-NTBS)
【单选题】Mount Heng is a place of interest with different kinds of __ .
A.
tree
B.
plants
C.
animal
【单选题】There are ______ of books in the school library. [ ]
A.
many kinds
B.
much kinds
C.
many kind
D.
much kind
【单选题】There are many kinds of birds in Australia,and over 140 species of snakes,many of ____are extremely dangerous.
A.
them
B.
which
C.
what
D.
those
相关题目：