By ______ , a firm can concentrate on their strongest part in the value chain, e. g. marketing, while contracting with foreign companies for the manufacture of their products.
A、restaurant project
B、turnkey project
C、contract manufacturing
D、management contract
【正确答案】：C
【题目解析】：By contract manufacturing, a firm can concentrate on their strongest part in the value chain, e. g. marketing, while contracting with foreign companies for the manufacture of their products.参见教材P6。