若梯形的面积为8cm2,高为2cm,则此梯形的中位线长是[ ]
A.2cm
B.4cm
C.6cm
D.8cm
答案:B
. _____and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
A.To be tired
B.Tired
C.Tiring
D.Being tired
第一次,苏东坡被贬到()。
A、黄州
B、苏州
C、湖州
D、杭州