起跑的难点是?
A. 起跑时保持轮子与地面垂直
B. 起跑时保持两脚尖向前
C. 蹬地时轮子向后方蹬地
Fossile records indicate______ existing in the past have become extinct.
A. that many species of organisms
B. many species of organisms that are
C. many species of organism are
D. there are many organisms
The early years of the United State government were characterized by a debte concerning______ or indiviudal states should have more power.
A. whether the federal government
B. either the federal government
C. that the federal government
D. the federal government
The early feminist leader Susan B. Anthony became increasingly aware through her work in the temperance movement______ the same rights as men.
A. women were not granted that
B. that women were not granted
C. not granted women that were
D. that were not granted that women