题目内容

甲企业向乙银行贷款100万元，其中甲企业以自己的机器设备抵押，又请丙企业作为保证人。如果甲企业到期不能还款，丙企业应对100万元承担保证责任。[ ]

A. 对
B. 错

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设A是n阶实对称矩阵，如果A2=O，证明A=O．并举例说明，如果A不是实对称矩阵，上述命题不正确．

Part A You will hear 10 short dialogues, For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE. Now look at Question 1. What does the man mean

A. The park is nearby.
B. He doesn’t know about the park.
C. There is no parking here.
D. He doesn’t understand the question.

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下列要素中，不属于DFD的是 (17) 。当使用DFD对一个工资系统进行建模时， (18) 可以被认定为外部实体。

A. 加工
B. 数据流
C. 数据存储
D. 联系

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Why did the lower-class white people in the United States treat Chinese immigrants with hostility

A. Because they didn’t understand their language.
Because they saw them as a source of threat to their jobs.
C. Because their culture was very different from theirs.
D. Because they had very different appearances.

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甲企业向乙银行贷款100万元，其中甲企业以自己的机器设备抵押，又请丙企业作为保证人。如果甲企业到期不能还款，丙企业应对100万元承担保证责任。[ ]

A. 对 B. 错

设A是n阶实对称矩阵，如果A2=O，证明A=O．并举例说明，如果A不是实对称矩阵，上述命题不正确．

下列要素中，不属于DFD的是 (17) 。当使用DFD对一个工资系统进行建模时， (18) 可以被认定为外部实体。

Why did the lower-class white people in the United States treat Chinese immigrants with hostility

A. 对
B. 错