皮皮学，免费搜题
登录
搜题
【简答题】
确定一条直线与标准方向之间的水平角度关系，称为______。
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】There are _______ days in a year.
A.
three hundred sixty-five
B.
three hundred and sixty-five
C.
three hundred and sixty –five
D.
two hundreds and sixty-five
【单选题】_______ people lost their lives in the traffic accident. [ ]
A.
Three hundred
B.
Three hundred of
C.
Three hundreds of
D.
Hundred of
【单选题】There are _________days in a year. A. three hundred sixty-five B. three hundreds sixty-five C. three hundred and sixty-five D. three hundred sixty five
A.
three hundred sixty-five
B.
three hundreds sixty-five
C.
three hundred and sixty-five
D.
three hundred sixty five
【单选题】提出细胞学说的是
A.
Robert Hooke和Leeuwen Hoek
B.
Crick和Watson
C.
Schleiden和Schwann
D.
Sichold和Virchow
E.
Avery和Flemming
【单选题】提出细胞学说的科学家是:
A.
Robert Hooke和Leeuwen Hoek
B.
Crick和Watson
C.
Schleiden 和Schwann
D.
Sichold和Virchow
相关题目：