A:
B: f(x)=1
C: f(x)= -1
D:
举一反三
- <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/c3b75de7a0ff4216a7c936dfa863e921.PNG" /> A: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/9bc090082ac447aab731646e7ce4a372.PNG" /> B: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/5666843a7db64c75a2ec586b2db2f35f.PNG" /> C: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/fd98481c51284a9db6d3c21bd7fa60ca.PNG" /> D: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/6f7725736cf84d439343d0c213a650e7.PNG" />
- <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/9b4d8d9a44a447c2af0bf584f998415d.PNG" /> A: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/189e9a57dc014ea8900a1c5f439cd232.PNG" /> B: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/674e45e808174455ad0e186c323d1505.PNG" /> C: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/d383f19ca7094dfdaaa9c71c2b63d924.PNG" /> D: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/995fe28645a0486cbcd43885cdc51a76.PNG" />
- 在6/8拍子中，哪种记谱是规范的？（ ） A: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/1fa00e5363084599af58abfe32d10c81.png" /> B: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/c5c9c50ae1314ab2852159f18cdfc13c.png" /> C: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/2579da4b06c74d1da3717f6a6562e070.png" /> D: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/c548bd12f6d84b92b2964322fad7904e.png" />
- 以下说法错误的是（）。 A: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/19d925ad13764c298684def78fbdc3ea.png" /> B: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/43f3e8b36fab4d1baf26ae9614035af9.png" /> C: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/eed86e09829a4f09b7802aca8c5efa57.png" /> D: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/3584ca66a59a438ea2e7f92979a19b72.png" />
- 下面的旋律属于低音区的是（ )。 A: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/c6add8550ed34b56a660fd22a99400e8.png" /> B: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/00527db59c4e4ef0b487f63ccb30a709.png" /> C: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/e40b2582b2cd4c0281aa8183f55c7830.png" /> D: <img src="https://image.zhihuishu.com/zhs/teacherExam_h5/COMMONUEDITOR/202104/b3077caac23e4da9b1c900e97a04e99f.png" />