[单项选择]Judging by the extraordinary warm clothes some people wear, what might we learn about them
A. They may be homesick and feel insecure.
B. They are either cold or very sick.
C. They may try to attract other people’’s attention.
D. They want to protect themselves from physical injuries.

[单项选择]Judging by the extraordinary warm clothes some people wear, what might we learn about them
A. They may be homesick and feel insecure.
B. They are either cold or very sick.
C. They may try to attract other people’’s attention.
D. They want to protect themselves from physical injuries.

[单项选择]The Function of Adrenocorticotriopin Some people can quite accurately time the end of their night’’s sleep at will, without using an alarm clock, demonstrating that it is possible to voluntarily control a state of consciousness that is characterized by a loss of volition and attentional guidance. Here we show that the expectation that sleep will come to an end at a certain time induces a marked increase in the concentration of the hormone adrenocorticotriopin(促肾上腺皮质激素) in the blood one hour before waking. The regulation of adrenocorticotropin release during nocturnal sleep is therefore not confined to daily rhythms._________(46). _________(47). Normally, the release of adrenocorticotropin and cortisol(皮质醇) increases during late stages of sleeping, reaching a daily maximum at the time of spontaneous waking. Adrenocorticotropin and Cortisol are also released from the pituitary-adrenal system in a major adaptive response to stress, and are secreted in anticipation of stressful e