设函数[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]具有二阶导数，[tex=11.5x1.286]smjuwGQVvefxbTfg7kpxLeJdZzszDqkd24RA1iUOwPc=[/tex]，则在区间[tex=1.929x1.286]5WiKxiqIs2aMQ1aNQurkGw==[/tex]上
未知类型：{'options': ['当[tex=3.929x1.286]iTT05OIZYInS/mDVQ3K54w==[/tex]时，[tex=5.0x1.286]tzefxvK9bHu34MBTyF+OWurJKlXia9IEARArOSN1YCU=[/tex]', '当[tex=3.929x1.286]iTT05OIZYInS/mDVQ3K54w==[/tex]时，[tex=5.0x1.286]vuPfdbb6xeiPFD/FLLzG1VEiH0kBTLDZfYd7kD9MPew=[/tex]', '当[tex=4.214x1.286]703zyBr3xldxX3uIS21JGw82yNpoeU3SMRewM19u4d4=[/tex]时，[tex=5.0x1.286]tzefxvK9bHu34MBTyF+OWurJKlXia9IEARArOSN1YCU=[/tex]', '当[tex=4.214x1.286]703zyBr3xldxX3uIS21JGw82yNpoeU3SMRewM19u4d4=[/tex]时，[tex=5.0x1.286]vuPfdbb6xeiPFD/FLLzG1VEiH0kBTLDZfYd7kD9MPew=[/tex]'], 'type': 102}
未知类型：{'options': ['当[tex=3.929x1.286]iTT05OIZYInS/mDVQ3K54w==[/tex]时，[tex=5.0x1.286]tzefxvK9bHu34MBTyF+OWurJKlXia9IEARArOSN1YCU=[/tex]', '当[tex=3.929x1.286]iTT05OIZYInS/mDVQ3K54w==[/tex]时，[tex=5.0x1.286]vuPfdbb6xeiPFD/FLLzG1VEiH0kBTLDZfYd7kD9MPew=[/tex]', '当[tex=4.214x1.286]703zyBr3xldxX3uIS21JGw82yNpoeU3SMRewM19u4d4=[/tex]时，[tex=5.0x1.286]tzefxvK9bHu34MBTyF+OWurJKlXia9IEARArOSN1YCU=[/tex]', '当[tex=4.214x1.286]703zyBr3xldxX3uIS21JGw82yNpoeU3SMRewM19u4d4=[/tex]时，[tex=5.0x1.286]vuPfdbb6xeiPFD/FLLzG1VEiH0kBTLDZfYd7kD9MPew=[/tex]'], 'type': 102}
举一反三
- 某人对商品x的需求函数是[tex=5.214x1.214]0m6eBd5eyK0NjuxeKfwtIw==[/tex]，[tex=4.214x1.214]I717YsPbj8Rnym1v2XQ+sFNkUl7mqUsGwbjwjXmy2xc=[/tex]，这里[tex=0.571x1.0]Za328cIB4SeR7rrzY+MM5Q==[/tex]是[tex=0.571x0.786]ZSLOI4fiO1oAbVC5M8IVkA==[/tex]的价格。如果商品x 的价格是0.5元，那么他对商品x的需求价格弹性是 未知类型：{'options': ['-10', '- 1/5', '-1/10', '\xa0- 1/3'], 'type': 102}
- 设有下列4个条件:(1)[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]在[tex=1.929x1.286]vPlUmwL8t1REs9r1XOy2kg==[/tex]上连续.(2)[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]在[tex=1.929x1.286]vPlUmwL8t1REs9r1XOy2kg==[/tex]上有界.(3)[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]在[tex=1.929x1.286]vPlUmwL8t1REs9r1XOy2kg==[/tex]上可导. (4)[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]在[tex=1.929x1.286]vPlUmwL8t1REs9r1XOy2kg==[/tex]上可积. 则这4个条件之间的正确关系是 未知类型：{'options': ['[tex=5.214x1.286]otUBslvC+g9E/+QRN3FPcz3QWAnX57gbwSFiq/83tZrJDCQDXng89PvbVLa0ErH1[/tex][tex=3.929x1.286]tD4aFAoM85LoQt+qBgIMMo1Mlcypda8ZwrSysyWdmUM=[/tex]', '[tex=5.214x1.286]otUBslvC+g9E/+QRN3FPc+FFFKMJscOGEYnfyfqpT38HisBD+YsE9Wm8vKAwGBZU[/tex][tex=3.929x1.286]i1AFd+ysL/BK+chgAtWII4EOHwT9ui5FjdIGbZfMEVY=[/tex]', '[tex=5.214x1.286]otUBslvC+g9E/+QRN3FPc63PLXQBY+RInk3VeIGVKAUTVTu9w4rFocSKUD2aYvIJ[/tex][tex=3.929x1.286]tD4aFAoM85LoQt+qBgIMMg94hhXOci2B7g9Vu4mm3UA=[/tex]', '[tex=5.214x1.286]4/5aoaEuruE0zuHBY80AilsCo+Vn8cII8nbhXUGzLxvxZe8HtwdnL7T48PRQeC9D[/tex][tex=3.929x1.286]i1AFd+ysL/BK+chgAtWII4EOHwT9ui5FjdIGbZfMEVY=[/tex]'], 'type': 102}
- 已知[tex=5.0x1.286]nNRgYScRPw16N2lBJqtTsA==[/tex]，[tex=5.0x1.286]ZIJz5gTGIgdeWAGMFdoL1A==[/tex]，则[tex=6.214x1.286]wE5wtWoL9HR6uGPZrIzvHA==[/tex]成立的[tex=0.571x1.286]XubEW9+1+hkJqH7jXe5MrA==[/tex]值为 A: 1 B: 2 C: 4 D: 6 E: 8
- [tex=2.214x1.0]Z8GWW72u+MH/mjafnp+83A==[/tex]丙酮酸经过丙酮酸脱氢酶系和柠檬酸循环产生[tex=4.0x1.214]EPDWVFNjIR8daNoozaWRDg==[/tex],生成的[tex=3.214x1.0]1AqDCKqjaAug6buHS5Z0tQ==[/tex]、[tex=3.429x1.214]HYAn2+I9AZQLWcA3ajoPaw==[/tex]和[tex=2.143x1.0]qQANfGnLx7pE5mcaEibuNg==[/tex](或[tex=2.071x1.0]YGdeb/NAM7yg+XY6SY16Fg==[/tex])的摩尔比是( )。 未知类型：{'options': ['3:2:0', '4:2:1', '4:1:1', '3:1:1', '2: 2:2'], 'type': 102}
- 测量某[tex=4.214x1.286]qKjKBzdmW/ITuG9cPkOeAg==[/tex]的漏源电压，栅源电压值如下，其[tex=1.714x1.286]gmU2cywKcS1DaSpFogJmLOfKfEj/vnXmYqY7BTDW6tw=[/tex]、[tex=1.714x1.286]MiBX2R3sOmrGI3PeNzQKOA==[/tex]或[tex=1.714x1.286]f4w775SJShLfoONc1jaLqKJSuRYTv5bCFH/Q2ovkveg=[/tex]、[tex=1.643x1.286]/2s7vN1oMPbbT/Y9GCfZvGRycswIF6JpCppqWFqjqP8=[/tex]值也已知，试判断该管工作在什么区域（饱和区，可变电阻区，预夹断临界点或截止）．（1）[tex=4.214x1.286]8SD38C5H6Pkfvgha7I6rKjbeMcm/vL0o7/KMw7OpA9U=[/tex]，[tex=4.214x1.286]H6zzvoZisDZe1McHFZkBr6rbb0ar6IQAOrLj/uKkaxA=[/tex]，[tex=4.286x1.286]jPrP7Dm+L0eyLbIiCQP6fsedC2njLWAeBxv+ytEoOrI=[/tex]；（2）[tex=4.214x1.286]8nuYq1mduhna8bQxNFkkwMSdDbagXxZxzPGqESyB1VY=[/tex]，[tex=4.214x1.286]H6zzvoZisDZe1McHFZkBr6rbb0ar6IQAOrLj/uKkaxA=[/tex]，[tex=4.286x1.286]jPrP7Dm+L0eyLbIiCQP6fsedC2njLWAeBxv+ytEoOrI=[/tex]；（3）[tex=4.214x1.286]8SD38C5H6Pkfvgha7I6rKjbeMcm/vL0o7/KMw7OpA9U=[/tex]，[tex=4.214x1.286]b8wKa/NhkzYs3u8hGi+FcxSO39+sESiP5+ulHQMVZxw=[/tex]，[tex=5.071x1.286]JkpD9eT6fbY4VziDQ5+LO69kMgJBSIC6vdgTt3mDv7Q=[/tex]；（4）[tex=4.214x1.286]ms1eWg8OF9Fbjcm+LlB0f03ZC9bpjTR9Z18AGnYZBE4=[/tex]，[tex=4.929x1.286]tGrINwizd1Wo84zjHZOeR8uw2m3hu+7xo3+IFd2dwOc=[/tex]，[tex=5.0x1.286]G9oz9SJxdG9aKRI0KoJjyiSvN7B3QvaHTnl7tLpWuCo=[/tex]；（5）[tex=4.929x1.286]Ahkc3//EHhFGedaIZADnOGHaG6eTfXgybAeFgFs11Xc=[/tex]，[tex=4.929x1.286]ZUmStY4OdFbAmDhtsHopyZliLDML30pAvEz9xnwoIFI=[/tex]，[tex=5.0x1.286]UeW67MvHjoVPxTLW839dv2oNhDgUe4k7+sWsocYFSNI=[/tex]；（6）[tex=4.214x1.286]8SD38C5H6Pkfvgha7I6rKjbeMcm/vL0o7/KMw7OpA9U=[/tex]，[tex=4.929x1.286]PmsYa0xjvHnECUYQjpPw+4DfkbK5SEKoIzf+i3joIxM=[/tex]，[tex=5.0x1.286]UeW67MvHjoVPxTLW839dv2oNhDgUe4k7+sWsocYFSNI=[/tex]；（7）[tex=4.929x1.286]Ahkc3//EHhFGedaIZADnOGHaG6eTfXgybAeFgFs11Xc=[/tex]，[tex=4.929x1.286]YSrUmXECiQE8FPztoRorqexE+Snq5qSNksW7VcDtLzI=[/tex]，[tex=5.786x1.286]UeW67MvHjoVPxTLW839dv3OmtD6MilA0ASNalTuA7LA=[/tex]．