A.direct.
B.cheerful.
C.shy.
D.capable.
第1题
Your words may be completely______when it is passed on through different months.
A.distorted
B.restored
C.recovered
D.misled
请帮忙给出正确答案和分析,谢谢!
第2题
Through Dr. Charles Czeislers experiment, we know that
A.blind people cannot tell their brain when there was more light.
B.the level of melatonin does not change in blind people"s blood.
C.facing light, the level of melatonin in blind people will increase.
D.not all the blind people have sensibility to light.
请帮忙给出正确答案和分析,谢谢!
第3题
What "programs" sighted people to sleep at night?
A.A decrease in melatonin level.
B.An increase in melatonin level.
C.Personal habits.
D.Psychological hint.
请帮忙给出正确答案和分析,谢谢!
第4题
According to the experiments, many blind people
A.sleep at daytime.
B.can sleep at any time.
C.have different sleep cycle with sighted people.
D.have the same sleep cycle as sighted people.
请帮忙给出正确答案和分析,谢谢!
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!