【单选题】----Do you hear that Mary quarreled with Lily this morning? ----Are you sure?But they acted_____nothing had happened.
【单选题】使用海运单的风险是
C.
托运人可能在将货装船出运后难以收回货款,造成钱货两空
【单选题】All things (had) been canceled (because) of the snowstorm, many passengers could do (nothing) but (take) the train.
【单选题】The article claims that possessing an alarm system will
A.
show burglars that you have nothing worth stealing
B.
warn burglars not to break into your house
C.
make the burglars' undertaking more complicated
D.
persuade burglars to try coming another time
【简答题】假定在商品 X 的市场中,有 10000 个相同的个人的需求函数均为 Q d =12 - 2 P ;同时有 1000 个相同的厂商的供给函数均为 Q s =20 P 。试求: ( 1 )该产品的均衡价格和均衡数量是多少 ? ( 2 )如果每个消费者的收入有了增加,其个人需求曲线向右移动了 2 个单位,求现在的市场需求函数、均衡价格和均衡数量。 ( 3 )如果每个厂商的生产技术有了提高,其个人供给曲...