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单选题 一条线密度为5kg/m均匀的链子长4m,平放在地上,求将其一端提高到离地面6m时所需做的功( )
学科：高等数学
时间：2024-12-01 09:53:56
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题目1单选题
<img src="https://tihai-oss-cloud.itihey.com/img/0e5c28fd200a0840593c958a47a794a3.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/abaabe52a98ba1b7415077ec5811fcc3.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/a6ec8dd7549282a7dcb9455b0f0fb261.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/a572a6a845530add181245cb1129a409.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/52ce64854d33008918bbfb2f507262fc.png">
题目2单选题
<img src="https://tihai-oss-cloud.itihey.com/img/45b58d9c1e92e051284c88bb8fdcf350.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/3fb2811629df7e751ac503d0ef83ca77.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/1f6dd4a630b1118513988e781ce54f88.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/747b4da3c6e7e2b6ef91b507722268eb.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/cd42586dcde42a5c818737f0f2a814f2.png">
题目3单选题
<img src="https://tihai-oss-cloud.itihey.com/img/f8488371ab412351d3d396b83fa6bc6d.gif">A. 3B. <img src="https://tihai-oss-cloud.itihey.com/img/fc2111b5cba89bda5f3808758c8ed97c.gif">C. <img src="https://tihai-oss-cloud.itihey.com/img/2c87eccf3feac362bde26a4f1a32b762.gif">D. -3
题目4单选题
<img src="https://tihai-oss-cloud.itihey.com/img/ae008f2524d194fea373633f344a8ff8.jpg">A. 4B. 1C. 2D. 3
题目5单选题
<img src="https://tihai-oss-cloud.itihey.com/img/dc718f685675a487a774e1d870410d5e.gif">A. 0B. <img src="https://tihai-oss-cloud.itihey.com/img/a539d861e2de811264a639bfa58a97ae.gif">C. 1D. 2E. <img src="https://tihai-oss-cloud.itihey.com/img/fc2111b5cba89bda5f3808758c8ed97c.gif">
题目6单选题
一条线密度为5kg/m均匀的链子长4m,平放在地上,求将其一端提高到离地面6m时所需做的功( )A. 784JB. 649JC. 526JD. 714J
题目7单选题
<img src="https://tihai-oss-cloud.itihey.com/img/2f35da00a058c5e48580d861767dd629.jpg">A. 既非充分又非必要条件B. 充分必要条件C. 充分条件D. 必要条件
题目8单选题
<img src="https://tihai-oss-cloud.itihey.com/img/c3cf4956fb5f2d982221bd2ff16d9b9f.jpg">A. -2B. 2C. -4D. 4
题目9单选题
<img src="https://tihai-oss-cloud.itihey.com/img/20a7a2b2c8cd962a37d695ef0e5a0440.jpg">A. 0B. 1C. 2D. 3E. 6
题目10单选题
<img src="https://tihai-oss-cloud.itihey.com/img/81fe178e9d726c113fd9dcb9cf81ce58.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/3f7c2e8934745edbbb5e492e084c2046.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/1e33939942ea1c33f38e86593e6a5a69.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/e3a86b1c2cc18b305b24e6243f4ec212.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/325a9b2992f90d20eea8de7ec3613c6b.png">
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