皮皮学，免费搜题
登录
搜题
【单选题】
下列说法中，正确的是 [ ]A.
任何一个集合必有两个子集
B.
若A∩B= ，则A，B中至少有一个为
C.
任何集合必有一个真子集
D.
若S为全集，且A∩B=S，则A=B=S
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】The maximum stress in the beam's cross section is ( ).【图片】
A.
40.4 psi
B.
64.6 psi
C.
48.0 psi
D.
107.9 psi
【单选题】After living in London for thirty years, he returned to the small town _____ he once lived with his parents. [ ]
A.
which
B.
where
C.
while
D.
when
【简答题】我不会因为失败而绝望地放弃自己的理想。(in despair)
【单选题】He has lived in London and New York, but he doesn't like ______ city.
A.
neither
B.
either
C.
both
D.
all
【简答题】汉译英:我不会因为失败而绝望地放弃自己的理想。(in despair)
【简答题】I-shaped ; T-beam; n-region ; P-N-junction ; A.C.:ante cibos;
【单选题】On the cross-section that is exerted a concentrated couple m for the beam,.
A.
there is a sudden jump in value in Q diagram, but no change in M diagram
B.
there is a sharp angles in Q diagram, and a sudden jump in value in M diagram
C.
There is no change in Q diagram, but a sudden jump in value in M diagram
D.
There is a sharp angle in Q diagram, and no sudden jump in value in M diagram
【简答题】elif语句必须和【】一起使用,否则会出错。
相关题目：