花山壁画是壮族的先人们在()多年前画上去的。
A.1800
B.1900
C.2000
D.2100
参考答案:C
The Communicative Approach believes that language is used for communication and is more concerned with meaning than with ______.
一般情况下,在分析竞争者实力时,需要检测的变量有()。
A.竞争者的心理份额
B.竞争者市场份额
C.竞争者财务状况
D.竞争者情感份额
E.竞争者人力资源