中国石油大学 / 中石油
正确率:100%
37. although no specific objectives were laid _____ at the first conference, the general function of unctad is to formulate, negotiate and implement measures to improve the development process.
A、on
B、down
C、upon
D、below
A、on
B、down
C、upon
D、below
参考答案:
佳题速递: