皮皮学，免费搜题
登录
搜题
【简答题】
渐开线直齿圆柱齿轮齿廓上各点的压力角是不同的,它在 圆上的压力角为零,在 圆上的压力角最大,在 圆上的压力角则取为标准值。通常所说的齿轮压力角是指 圆上的压力角。
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】According to Dialogue A. Mr. Smith is looking for the nearest __________.
A.
hotel
B.
supermarket
C.
post office
D.
bank
【单选题】Accoring to Dialogue A, Mr. Smith is looking for the nearest ______.
A.
hotel
B.
supermarket
C.
post office
D.
bank
【单选题】Mr. Smith is looking for an experienced secretary who is ________ of organising a busy sales office.
A.
capable
B.
able
C.
possible
D.
responsible
【单选题】According to the dialogue, mr. smith is looking for the nearest __________.
A.
hotel
B.
supermarket
C.
post office
D.
bank
【简答题】Linux系统中root用户的UID为A. 0
【简答题】设计费和交付办法 Design fee and its P _________________ .
【单选题】Mr. Smith is looking for an experienced secretary who is______ of organizing a busy sales office.
A.
able
B.
responsible
C.
capable
D.
possible
相关题目：