Propranolol (普萘洛尔) belongs to A: α receptor antagonist B: α receptor agonist C: β receptor antagonist D: β receptor agonist

Propranolol is a A: M3 receptor agonist B: α receptor agonist C: β receptor antagonist D: α receptor antagonist E: NM receptor antagonist

A drug combine with the receptors and show its effects, the drug is called A: partial agonist B: agonist C: noncompetitive antagonist D: competitive antagonist E: blocker

Angina pectoris, tachycardia, and arrhythmias are possible adverse effects of which of the following agonists? A: α2-agonist B: α1-agonist C: β3-agonist D: β1-agonist

Which of the following agonists would be used for cardiac arrest, heart block, or heart failure? A: α1-agonist B: α2-agonist C: β1-agonist D: β3-agonist

The concentration or dose at which drugs produce equivalent effects is called A: efficacy B: potency C: excitation D: inhibition E: agonist

Propranolol is A: effective in the treatment of supraventricular arrhythmias B: effective in all angina pectoris cases by increasing the O2 supply C: lowers the blood pressure by reducing the renin synthesis D: cardioselective and having a partial agonist activity

A 65-year-old woman is noted to have suspected uterine fibroids on physical examination. Over the course of 1 year, she is noted to have enlargement of her uterus from approximately 12 weeks’ size to 20 weeks’ size. Which of the following is the best management? () A: Continued careful observation B: Monitoring with ultrasound examinations C: Exploratory laparotomy with hysterectomy D: Gonadotropin-releasing hormone agonist E: Progestin therapy

【单选题】NO 2 、NO 2 - 、NO 2 + 键角大小关系正确的是 。 A. NO 2 > NO 2 - >NO 2 + B. NO 2 + >NO 2 >NO 2 - C. NO 2 - > NO 2 >NO 2 + D. NO 2 + > NO 2 - >NO 2

求定积分[img=179x43]17da65388c0b1ca.png[/img]； （ ） A: log(2^(1/2) + 1)/2 + 2^(1/2)/2 B: log(2^(1/2) + 1)/2 - 2^(1/2)/2 - 1/2 C: log(2^(1/2) + 1)/2 + 2^(1/2)/2 - 1/2 D: log(2^(1/2) + 1)/2 + 2^(1/2)/2 + 1/2