注意：只能一次作答提交。https://p.ananas.chaoxing.com/star3/origin/5c180a8f2cdd1552266ac9b6f052ab27/module/audioplay.html?objectid=838e1cfa8bd0aeb80a3fcf77d9a63f22
举一反三
- 注意：可以多次作答，取历史最高分。https://p.ananas.chaoxing.com/star3/origin/e155bd1e58fb4c641c49dd0d009ae456/module/audioplay.html?objectid=0d997ffea30bf0e70183b82160ccf9dc
- https://p.ananas.chaoxing.com/star3/origin/f27ee7165b692d70516e0bd90e563b5f.png/module/audioplay.html?objectid=e44c61525b93d2af07c2dd5c48004419https://p.ananas.chaoxing.com/star3/origin/2454e90197204ca93648e0c57fd9c53d.pnge44c61525b93d2af07c2dd5c48004419
- 下图所示机构自由度计算,( )是正确的。 A: mg src="http://p.ananas.chaoxing.com/star3/origin/cb07ca0fb12be985c301490389c1e187.jpg" B: F=3×7 –(2×9 + 2 – 2)– 2 = 1 C: F=3×7 –(2×9+ 2– 0)– 0 = 1 D: F=3×7 –(2×8+ 2 – 0)– 2 = 1 E: F=3×5 –(2×6+ 2– 0)– 0 = 1
- 用小写字母填写答案。https://p.ananas.chaoxing.com/star3/origin/dd924937477f5fa43197b5caa5e3d4ca.pnghttps://p.ananas.chaoxing.com/star3/origin/1cb87a367bccfa48d4cadb2a0e723eba.png/module/audioplay.html?objectid=e111dc5fb1ef82f295e2575eb05ba281
- /module/audioplay.html?objectid=60faa7a4794466684a3f4b0474d62da2/module/audioplay.html?objectid=d6fdb027f30b1eceeba38831c1e5ad93/module/audioplay.html?objectid=ab0416a829536375baef4688cf232948https://p.ananas.chaoxing.com/star3/origin/9b4f3a2f9bd640b9583e579c2b4db585.png