图14日本、阿根廷，马来西亚、加拿大四个国家“农业比例示意图”，回答问题。
图14四个国家中属于世界重要粮食出口国的是( )
| A．①② | B．②④ | C．③④ | D．①③ |
对有关各国的叙述正确的是( )
| A．①国农业生产实现高度机械化，商品粮产区在南部平原 |
| B．②国农业生产技术水平低，农业产值比重小 |
| C．③国的橡胶、油棕和椰子出口量居世界第一位 |
| D．潘帕斯草原是④国重要的畜牧业区 |
In our school, the students have three_____ courses, and seven______ entrepreneurial education courses .
| A．required; alternative | B．requiring; alternative |
| C．required; alternate | D．requiring; alternate |
I should consider how to____the news about the Navy celebration in Qingdao in my computer so that I can finfd it fast.
| A．classify | B．recognize | C．store | D．accumulate |
Yao Ming is my favourite basketball player. I regard him____ other players.
| A．more superior | B．more superior than | C．superior to | D．superior than |
His factory broke down because of the financial crisis, but it was different_____ of me, I owed the copyright of products.
A in caseB. in the eventC. in the caseD. in no case
It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.
| A．distinguish | B．separate | C．identify | D．recognize |