【单选题】Material culture refers to the touchable, material 'things'—physical objects that can be seen, held, fell, used — that a culture produces. Examining a culture's tools and technology can tell us about ...
A.
it helps produce new cultural tools and technology
B.
it can reflect the development of the nation
C.
it helps understand the nation's past and present
D.
it can demonstrate the nations civilization
【多选题】主要作用于 α 和 β 受体的拟肾上腺素药有
【单选题】下列关于拟肾上腺素药的叙述错误的是
B.
去氧肾上腺素主要激动α1受体,对β受体几乎无作用
C.
去甲肾上腺素主要激动α受体,对β1受体作用较弱
【单选题】主要作用于α和β1受体的拟肾上腺素药是( )
【单选题】The phrase 'physical products' in the second paragraph means ______.
A.
things that can be seen or felt
B.
things useful for health care
C.
things that help you keep fit
D.
things connected with sports
【单选题】Physical exercises not only are useful for character training but also can ________ man’s body.
【单选题】What can be inferred from the professor's remarks?
A.
Physical illnesses come along with old age.
B.
Physical changes take place gradually.
C.
People suddenly become weak at 65.
D.
Illnesses occur mostly at the age of 65.
【单选题】Material culture refers to the touchable, material 'things'—physical objects that can be seen, held, felt, used—that a culture produces. Examining a culture's tools and technology can tell us about th...
【简答题】激动α受体和β受体的药物有 、 ,主要作用于α受体的拟肾上腺素药有 、 ,主要激动β受体的药物有 、 。