运行以下命令:>> a=eye(5);>> for n=a(2:end,:)……则for循环的循环次数是______。
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写出下列单词的正确变形1. represent ---______________(n. )2. occupation ---______________(v. )3. transmit ---__________(n. )4. simple ---__________(n. )5. original ---__________(n.)
The following 5 questions are based on this audioReport: Agriculture and Nation This passage is most probably ______.
A. a news item
B. Part of an introduction of a book
C. Part of a lecture.
D. An advertisement
What is most important to agriculture is ________?
A. The amount of food it produces.
B. The per capita income of farmers.
C. Its industrial performance.
D. The production of investment goods.
But the industrial performance of agriculture is even more important than this. The word “this” refers to _______.
A. the provision of food and raw materials
B. The productivity of farmers.
C. The production of investment goods.
D. The economy as a whole.