【单选题】新中国第一位获得奥运会金牌的男运动员是谁?
【单选题】关于拟肾上腺素药的叙述,错误的是
C.
去甲肾上腺素主要激动α受体,对β1受体也有一定的激动作用
【单选题】温室效应是由于大气层中下列哪种气体增加所引起 ( )
【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.
【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 、 。