Reading Comprehension
试题详情
文章：
题目：
The author of the passage would probably agree with which of the following statements about the SCNs?
选项:
A、The SCNs are found in other organs and tissues of the body besides the hypothalamus.
B、The SCNs play a critical but not exclusive role in regulating circadian rhythms.
C、The SCNs control clock genes in a number of tissues and organs throughout the body.
D、The SCNs are a less significant factor in regulating blood pressure than scientists once believed.
E、The SCNs are less strongly affected by changes in light levels than they are by other external cues.
答案:
B
