____________ is the first day of the week.[ ]
A. Saturday
B. Sunday
C. Monday
D. Friday
答案:B
Not until the early years of the 19th century ________ what heat was.
A.man did know
B.did man knew
C.didn't man know
D.did man know
WAIS-RC中数字符号分测验正式测验限时()秒。
A.60
B.120
C.90
D.150