皮皮学，免费搜题
登录
搜题
【多选题】
在回归分析中，确定直线回归方程的两个变量必须是A.
一个自变量，一个因变量
B.
均为随机变量
C.
对等关系
D.
一个是随机变量，一个是可控变量
E.
不对等关系
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】It i s the second time that the poor area_______.
A.
had been visited
B.
has been visited
C.
was visited
D.
is visited
【单选题】—I think her dress comes from the 1970s. —It_________ be from that time. It looks so modern on her.
A.
mustn’t
B.
can’t
C.
won’t
D.
wouldn’t
【简答题】( 一 ) 用动词的正确形式填空 — 时态专练: 1.Sometimes, each phrase ___________(teach) a common truth. 2.I __________ (phone) my friend the other day. 3.I__________(do) my homework at this time yesterday. 4.Most of the...
【简答题】医疗机构收治的隔离传染病病人或者疑似传染病病人产生的生活垃圾属于( )性废物
【单选题】It ’ s fortunate that I met a good teacher of Chinese. O therwise, I ______ on this tortured language a long time ago.
A.
would have given up
B.
had given up
C.
would give up
D.
gave up
【简答题】是通过改变现有酶分子的活性来调节代谢速率,包括酶活性的 和 。
相关题目：