Under such circumstances, they will try everything possible to familiarize themselves with the market conditions.
查看答案
A replacement or （） if you are not satisfied.
In the international market, goods on sale coming from different countries and suppliers are always facing keen competition.
In order to be a good scientist, ______.
A. mathematics is urgent
B. one should have the mathematics
C. one must understand mathematics
D. mathematics is important to understand
Low price at Willable & Ward is only （）.
微信支付 
支付宝支付