It ______ me four hours to do some shopping. [ ]
A. use
B. take
C. uses
D. takes
答案:D
—How old are you?
—I'm twelve years _____. [ ]
A. class
B. grade
C. old
《素问·六节藏象论》认为,心的阴阳属性为()
A.阳中之太阳
B.阳中之太阴
C.阳中之少阳
D.阴中之少阳
E.以上均不是