766.The human growth hormone, made by the pituitary gland, is secreted during sleep in higher concentrations than when awake.
(A) during sleep in higher concentrations than when awake
(B) when sleeping in higher concentrations than waking hours
(C) in higher concentrations during sleeping than waking
(D) in higher concentrations during sleep than during waking hours
(E) in higher concentrations when asleep than when awake
the key:D
比较考点：比较对象。during sleeping——during waking hours
768.The investor who is uncertain about the future is more likely to put money into blue-chip stocks or treasury bills than into gold.
(A) than into
(B) than they do
(C) than they are
(D) as into
(E) as
the key:A
比较考点：比较对象。into blue-chip stocks or treasury bills ——into gold