問題詳情
【題組】45. What can we learn from the letter?
(A) Too much melatonin can hurt teenagers’ brain.
(B) The brain stops making melatonin after 11 p.m.
(C) Sleeping longer helps the body make more melatonin.
(D) It is easier to fall asleep when the brain is makingmelatonin.
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
用户評論
【小小球】評論
Some studies show that teenagers' brains make melatonin, the hormone that helps sleep, between 11 p.m. and 8 a.m.有些研究指出青少年的大腦在晚上11點.....看完整詳解