皮皮学，免费搜题
登录
搜题
【多选题】
粉尘在呼吸道的阻留与以下因素有关A.
粉尘粒子的直径
B.
粉尘粒子的比重
C.
粉尘粒子的形状
D.
粉尘的分散度
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 process of using data collected from a small group to reach conclusions about a large group is called
A.
statistical inference.
B.
the scientific method.
C.
sampling.
D.
descriptive statistics.
【单选题】the process of using data collected from a small group to reach conclusions about a large group is called
A.
statistical inference.
B.
the scientific method.
C.
sampling.
D.
descriptive statistics.
【单选题】What are the factors that influence our construction of ethical system?
A.
Legal systems
B.
History, philosophies and countries
C.
Religions, philosophies and cultures
D.
Social norms
【单选题】Whether we want it or not we are all greedy by nature. From the moment we are【C1】______and to the last day of our life we【C2】______have an unsatisfied hunger to【C3】______more than we have. Greed is a ...
A.
sleepy
B.
born
C.
employed
D.
fired
【单选题】What are the factors that influence our construction of ethical system?
A.
Social norms
B.
Legal systems
C.
Religions, philosophies and cultures
D.
History, philosophies and countries
相关题目：