A ________ creates a state of tension that drives the consumer to attempt to reduce or eliminate it.
A) want
B) demand
C) need
D) response
查看答案
The mass market produces and consumes music, movies, sports, and other forms of entertainment known as ________.
A) user-generated content
B) culture
C) urban dictionary
D) popular culture
1．按照《2010年通则》的解释，采用CIF条件成交，买卖双方风险划分的界限是( )。A．装运港船边B．装运港船上C．装运港船舷D．目的港船舷
A. 装运港船边
B. 装运港船上
C. 装运港船舷
D. 目的港船舷
AaBb与AaBb杂交产生A_B_类型子代的比率为
A. 1/16
B. 1/8
C. 1/4
D. 3/8
E. 9/16
关于互换值,错误的叙述是()
A. 互换值代表基因间的距离
B. 互换值表示基因间的连锁强度
C. 互换值越大则连锁强度越小
D. 互换值等于亲本配子数占总配子数的百分比
E. 互换值越小则连锁强度越大
微信支付 
支付宝支付