中东地区处在联系__ _、__ ___、 ___三大洲,沟通__ _ 洋和__ _ _ 洋的枢纽地位。
亚 欧 非 大西 印度
Some people would rather ride bikes as bike ridding has_____ of the trouble of taking buses.
A.nothing
B.none
C.some
D.neither
测定某人基础代谢率与正常值比较,在什么范围内变动仍属正常()
A.±5%
B.±5%~10%
C.±10%~15%
D.±20%
E.±20%~30%