属于下列哪一类积木？http://image.zhihuishu.com/zhs...b21d5817d0b15fd2.png
举一反三
- 下列流程控制图属于下列哪一种指令积木？http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/b419a9b65cd040b28e1dac068f876704.png
- 下列化合物有旋光性的是( )。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/42754375451947b4a2097a204914e285.png" border="0" vspace="0" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/259cc0f9369441888e4306c19039152f.png" border="0" vspace="0" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/c6798f5eb7e14df7a79f40cdd7d2f42e.png" border="0" vspace="0" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/4275928f484d4bad94705297fe159cf0.png" border="0" vspace="0" />
- 已知物体的主、俯视图，左视图正确的是（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201905/3930fea847ba4492944ddb365a59ad61.png" border="0" vspace="0" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201905/8c60c5d1b6634256b2ef9a91dac8488e.png" border="0" vspace="0" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201905/c0b01d9bd70846c0a833771f3e1329f0.png" border="0" vspace="0" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201905/f4f8a566f2de4d289c53bb491395d1fe.png" border="0" vspace="0" />
- 要使<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/c4b80714c3b14a559ae5bdcd09ef1fc6.png"/>是线性方程组AX=0的基础解系，则只要系数矩阵A=（ ）. A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/fb16cbefa5a746599e585bcf30dce878.png"/> B: ［2 1 1］ C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/df5d7a834bd44f44a519eaffffd47d39.png"/> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/5adacc7663b444d69f148ab2e7a11cf1.png"/>
- 下列四种产品中，（）属于主体附加。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/7de8bb1790ee4eccbc8fe23d663cb293.JPG" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/9f76d9ce04cb4729b4739bdd64d5917b.JPG" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/b4d8b1ab0b9c4f5e8d165f7afd487e00.JPG" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/4862f4e33e114c63bcfa3ebf5c112cba.JPG" />