People who get less than six hours of sleep per night have an increased _____ of dying early.
#6443
A
custom
B
practice
C
disadvantage
D
risk
推荐题目
I didn’t mean to break your vase—it was just ______. 
#5437
A
an accident
B
an advantage
C
an agreement
D
an experience
Scientists have achieved a major ___ in the search for a cure for cancer, ____ is good news for those who suffer from cancer.
#5279
A
breakthrough; what
B
breakdown; which
C
breakup; that
D
breakthrough; which
He lost his ______and fell off his bicycle.
#6206
A
balance
B
strength
C
power
D
way