医学考研英语试题：
1. The human body has a complex system of ______ that helps maintain homeostasis.
A. organs
B. tissues
C. cells
D. glands
答案：A
2. Which of the following is a function of the liver?
A. To produce red blood cells
B. To store glucose
C. To break down proteins
D. To filter blood
答案：D
3. What is the main function of the heart?
A. To produce blood
B. To circulate blood
C. To store blood
D. To remove waste from the blood
答案：B
4. The process of breaking down food into nutrients is called:
A. Digestion
B. Absorption
C. Assimilation
D. Excretion
答案：A
5. Which of the following is a symptom of a bacterial infection?
A. Fever
B. Diarrhea
C. Vomiting
D. All of the above
答案：D
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