题目内容

A．条件(1)充分，但条件(2)不充分． B．条件(2)充分，但条件(1)不充分． C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分． D．条件(1)充分，条件(2)也充分． E．条件(1)和(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．方程4x2+(a-2)x+a-5=0有两个不等的负实根． (1) a＜6 (2) a＞5

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盐酸氯丙嗪的含量测定采用

A. 紫外分光光度法
B. 高效液相色谱法
C. 非水溶液滴定法
D. 铈量法
E. 银量法

"How far is it to the next village" the American asks a man sitting by the side of the road. In some countries, because the man realizes that the traveler is tired and eager to get to his destination (目的地) ,he will politely say "Just down the road." He thinks this is more encouraging, gentler, and therefore the wanted answer. So the American drives through the night, getting more and more angry, feeling "tricked". He thinks the man purposely cheated him, for obviously he must have known the distance quite well.Had conditions been turned over, the American would have felt he was "cheating" the driver if he had said the next town was close when he knew it was really 15 miles further on. Though, he, too, would be sympathetic (同情的) to the weary driver, he would say "You have a good way to go yet; it is at least 15 miles. "The driver might be disappointed, but he would know what to expect.Whether to be correct or polite leads to many misunderstandings between people of different cul-tures. If you are aware of the situation in advance, it is sometimes easier to recognize the problem. We learn from this passage that Americans().

A. are good at cheating
B. are polite to anybody
C. are sympathetic but honest
D. have no sympathy for others

(二) 甲是乙公司的全资子公司，甲公司欠丁公司200万元且已经到期，现甲公司无法偿还债务。请回答下列题：现甲公司和丁公司达成协议，甲公司可以延长履行期限一年。甲公司为了提高效益决定分立。则下列说法正确的是哪项( )

A. 甲公司与丁公司达成的协议，乙公司可以为甲公司提供担保
B. 甲公司与丁公司达成的协议，乙公司不可以为甲公司提供担保
C. 甲公司分立的决议由甲公司董事会决议
D. 甲公司分立的决议由乙公司决议

A．条件(1)充分，但条件(2)不充分． B．条件(2)充分，但条件(1)不充分． C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分． D．条件(1)充分，条件(2)也充分． E．条件(1)和(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．如图4-2，长方形ABCD中恰好放入5个等圆，且，，两两相切；，，两两相切，则此长方形对角线长度为 (1) 每个等圆半径为2 (2) 每个等圆半径为