凭己“三寸不烂之舌”游说于六国之间的战国合纵之父是 [ ]
A、苏秦
B、张仪
C、孙膑
D、白起
答案：A
(2013·吉林长春三校高三调研)It is important to introduce children to healthy nutritious foods from ________ they begin to eat solids.
A．what
B．when
C．that
D．which
用抗生素治疗霍乱病例的主要目的在于（）
A.尽快治愈
B.减轻毒血症
C.减少腹泻
D.防止继发感染
E.缩短排菌时间，减少带菌机会
