举一反三
- <img src="http://p.ananas.chaoxing.com/star3/origin/560b9590e4b040cfea1a582d.png"/> <img src="http://p.ananas.chaoxing.com/star3/origin/560b9591e4b040cfea1a582e.png"/> <img src="http://p.ananas.chaoxing.com/star3/origin/560b9593498ed981287fd9e9.png"/>()， <img src="http://p.ananas.chaoxing.com/star3/origin/560b9593498ed981287fd9ea.png"/>()； <img src="http://p.ananas.chaoxing.com/star3/origin/560b9593498ed981287fd9ec.png"/> <img src="http://p.ananas.chaoxing.com/star3/origin/560b9593e4b040cfea1a5830.png"/>()， <img src="http://p.ananas.chaoxing.com/star3/origin/560b9593498ed981287fd9ea.png"/>()
- 请根据上述资料，计算得到的洪都公司本月A产品本月发生的生产费用是[imgsrc=...png"title="??1.png"]
- 三阶行列式[imgwidth="100"height="75"src="https://p.ananas.chaoxing.com/star3/origin/99f17d5803ba241d361ee6aaf4747bad.png"],则[imgwidth="113"height="24"src="https://p.ananas.chaoxing.com/star3/origin/3a32cf5c95786626e94530a34bf8a7da.png"](). A: -1 B: 0 C: 1 D: 2
- 下列符号表示两拍的是 A: <img src="http://p.ananas.chaoxing.com/star3/origin/fc00ca0cec8dd427dc15fc2958c82fba.jpg" /> B: <img src="http://p.ananas.chaoxing.com/star3/origin/2ab1bae8cce890765fe35f350c9da3a3.jpg" /> C: <img src="http://p.ananas.chaoxing.com/star3/origin/c161896591ea673a7e87bf05823878e9.jpg" /> D: <img src="http://p.ananas.chaoxing.com/star3/origin/f4d74c1de4a91f83bc4349e158eeeb08.jpg" />
- 图示应力状态，按第三强度理论校核，强度条件为（ ）。<img src="http://p.ananas.chaoxing.com/star3/origin/dd3fe2c04248453f934a5bf078c2096b.png"/> A: <img src="http://p.ananas.chaoxing.com/star3/origin/008fe5632455993a70b7aa9bf29fb1ef.jpg" /> B: <img src="http://p.ananas.chaoxing.com/star3/origin/9ffd49637b4c58b1fa85151ed63de699.jpg" /> C: <img src="http://p.ananas.chaoxing.com/star3/origin/5b8e6c02b33bd63b6fd0f121449e26b0.jpg" /> D: <img src="http://p.ananas.chaoxing.com/star3/origin/4896125577fc13ab75d592f1f3511baa.jpg" />