中学生网络课堂本课配套习题挑战模式1/6
单选题
难度系数：
1.下列属于噪声的是（ ）
| A: 上课时，老师的讲课声 |
| B: 音乐厅里演奏的交响乐 |
| C: 上课时，学校的大喇叭里传出的优美的歌声 |
| D: 舞台上口技演员模仿的风雨声、枪炮声 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOS7jueOr+S/neinkuW6pueci++8muWHoeaYr+WmqOeijeS6uuS7rOato+W4uOS8keaBr+OAgeWtpuS5oOOAgeW3peS9nOeahOWjsOmfs++8jOS7peWPiuWvueS6uuS7rOimgeWQrOeahOWjsOmfs+i1t+W5suaJsOS9nOeUqOeahOWjsOmfs+mDveaYr+WZquWjsA==
- 答案：Qw==
PGRpdj7ku47njq/kv53op5LluqbnnIvvvJrlh6HmmK/lpqjnoo3kurrku6zmraPluLjkvJHmga/jgIHlrabkuaDjgIHlt6XkvZznmoTlo7Dpn7PvvIzku6Xlj4rlr7nkurrku6zopoHlkKznmoTlo7Dpn7PotbflubLmibDkvZznlKjnmoTlo7Dpn7Ppg73mmK/lmarlo7DvvIzpgInpoblD5b2x5ZON5LqG5a2m55Sf55qE5a2m5Lmg77yM5YiZQ+aYr+WZqumfszwvZGl2Pg==
本课配套习题挑战模式2/6
单选题
难度系数：
2.下列哪些声音是噪声（ ）
| A: 教室里老师讲课的声音 |
| B: 马路上拖拉机行驶的声音 |
| C: 火车的鸣笛声 |
| D: 公园里悠扬的声音 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWHoeaYr+W9seWTjeS6uuS7rOato+W4uOeahOWtpuS5oOOAgeeUn+a0u+OAgeS8keaBr+etieeahOS4gOWIh+WjsOmfs++8jOmDveensOS5i+S4uuWZquWjsA==
- 提示2：IOiAgeW4iOeahOiusuivvuWjsOaYr+WtpueUn+aOpeaUtuefpeivhueahOa6kOazie+8jOS4jeaYr+WZquWjsA==
- 提示3：IOmprOi3r+S4iuaLluaLieacuuihjOmptueahOWjsOmfs++8jOW5suaJsOS6uuS7rO+8jOWxnuS6juWZquWjsA==
- 提示4：IOeBq+i9pueahOm4o+esm+WjsO+8jOi1t+WIsOitpuekuueahOS9nOeUqO+8jOS4jeaYr+WZquWjsA==
- 提示5：IOWFrOWbremHjOaCoOaJrOeahOWjsOmfs++8jOiIkue8k+S6uuS7rOeahOaDhee7qu+8jOS4jeaYr+WZquWjsA==
- 答案：Qg==
PGRpdj7ogIHluIjnmoTorrLor77lo7DmmK/lrabnlJ/mjqXmlLbnn6Xor4bnmoTmupDms4nvvIzkuI3mmK/lmarlo7DvvIxB6YCJ6aG56ZSZ6K+v77ybIOmprOi3r+S4iuaLluaLieacuuihjOmptueahOWjsOmfs++8jOW5suaJsOS6uuS7rO+8jOWxnuS6juWZquWjsO+8jELpgInpobnmraPnoa7vvJvngavovabnmoTpuKPnrJvlo7DvvIzotbfliLDorabnpLrnmoTkvZznlKjvvIzkuI3mmK/lmarlo7DvvIxD6YCJ6aG56ZSZ6K+v77yb5YWs5Zut6YeM5oKg5oms55qE5aOw6Z+z77yM6IiS57yT5Lq65Lus55qE5oOF57uq77yM5LiN5piv5Zmq5aOw77yMROmAiemhuemUmeivrzwvZGl2Pg==
本课配套习题挑战模式3/6
多选题
难度系数：
3.为防治噪声，下列做法属于在声源处减弱噪声的是（ ）
| A: 市区内严禁车辆鸣笛 |
| B: 市区道路两边的隔音墙 |
| C: 在机器上安装消音器 |
| D: 种草植树搞好城区绿化 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOW4guWMuumBk+i3r+S4pOi+ueeahOmalOmfs+WimeOAgeenjeiNieakjeagkeaQnuWlveWfjuWMuue7v+WMluWxnuS6juWcqOS8oOaSrei/h+eoi+S4reWHj+W8sQ==
- 提示2：IOemgei9pui+hum4o+esm+OAgeWcqOacuuWZqOS4iuWuieijhea2iOmfs+WZqOWxnuS6juWcqOWjsOa6kOWkhOWHj+W8seWZquWjsA==
- 答案：QSxD
PGRpdj7luILljLrlhoXkuKXnpoHovabovobpuKPnrJvvvIxB6YCJ6aG55q2j56Gu77yb5biC5Yy66YGT6Lev5Lik6L6555qE6ZqU6Z+z5aKZ77yM5piv5Zyo5Lyg5pKt6YCU5b6E5Lit5YeP5byx77yMQumAiemhuemUmeivr++8m+WcqOacuuWZqOS4iuWuieijhea2iOmfs+WZqO+8jOmAiemhuUPmraPnoa7vvJvnp43ojYnmpI3moJHmkJ7lpb3ln47ljLrnu7/ljJbvvIzmmK/lnKjkvKDmkq3pgJTlvoTkuK3lh4/lvLHvvIxE6YCJ6aG56ZSZ6K+vPC9kaXY+
本课配套习题挑战模式4/6
单选题
难度系数：
4.
下列控制噪声的措施中，属于防止噪声产生的是（ ）
| A: 晚上休息时关闭房间的门窗 |
| B: 公共场所不要高声喧哗 |
| C: 街道上安装噪声监测仪 |
| D: 纺织车间的工作人员使用防噪声耳罩 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5pma5LiK5LyR5oGv5pe25YWz6Zet5oi/6Ze055qE6Zeo56qX77yM5piv5Zyo5Zmq5aOw55qE5Lyg5pKt6L+H56iL5YeP5byx5Zmq5aOwPGJyPjwvcD4=
- 提示2：PHA+5YWs5YWx5Zy65omA5LiN6KaB6auY5aOw5Zan5ZOX77yM5piv5LuO5Zmq5aOw55qE5Lqn55Sf6Ziy5rK75Zmq5aOwPGJyPjwvcD4=
- 提示3：PHA+6KGX6YGT5LiK5a6J6KOF5Zmq5aOw55uR5rWL5Luq77yM5Y+q5piv6IO95aSf55uR5rWL5Zmq5aOw55qE5YiG6LSd77yM5L2G5LiN6IO95YeP5byx5Zmq5aOwPC9wPg==
- 提示4：PHA+57q657uH6L2m6Ze055qE5bel5L2c5Lq65ZGY5L2/55So6Ziy5Zmq5aOw6ICz572p77yM5piv5Zyo5Zmq5aOw55qE5o6l5pS25aSE5YeP5byx5Zmq5aOwPC9wPg==
- 答案：Qg==
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
本课配套习题挑战模式5/6
单选题
难度系数：
5.为防治噪声，下列做法属于在传播中减弱噪声的是（ ）
| A: 将市区的工厂迁往郊外 |
| B: 市区内严禁车辆鸣笛 |
| C: 种草植树搞好城区绿化 |
| D: 在机器上安装消音器 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOW4guWMuumBk+i3r+S4pOi+ueeahOmalOmfs+WimeOAgeenjeiNieakjeagkeaQnuWlveWfjuWMuue7v+WMluWxnuS6juWcqOS8oOaSrei/h+eoi+S4reWHj+W8sQ==
- 答案：Qw==
PGRpdj7lsIbluILljLrnmoTlt6XljoLov4HlvoDpg4rlpJbvvIzluILljLrlhoXkuKXnpoHovabovobpuKPnrJvvvIzmmK/lnKjlo7DmupDlpITpmLLmraLlmarpn7PnmoTkuqfnlJ/vvIxB44CBQumAiemhuemUmeivr++8m+enjeiNieakjeagkeaQnuWlveWfjuWMuue7v+WMlu+8jOaYr+WcqOS6p+azoumAlOW+hOS4reWHj+W8seWZqumfs++8jEPpgInpobnmraPnoa7vvJvlnKjmnLrlmajkuIrlronoo4Xmtojpn7PlmajvvIzmmK/lnKjlo7DmupDlpITlh4/lvLHlmarpn7PvvIxE6YCJ6aG56ZSZ6K+vPC9kaXY+
本课配套习题挑战模式6/6
单选题
难度系数：
6.
控制噪声的几种措施，其中属于在人耳处控制噪声的是（ ）
| A: 摩托车的消声器 |
| B: 公路两旁的透明玻璃板墙 |
| C: 城市道路旁的树木 |
| D: 工厂用的防噪声耳罩 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5bel5Y6C55So55qE6Ziy5Zmq5aOw6ICz572p5bGe5LqO5Zyo5Lq66ICz5aSE6Ziy5q2i5Zmq5aOwPC9wPg==
- 提示2：PHA+5pGp5omY6L2m55qE5raI5aOw5Zmo5piv5Zyo5aOw5rqQ5aSE5YeP5byx5Zmq5aOwPC9wPg==
- 提示3：PHA+5YWs6Lev5Lik5peB55qE6YCP5piO546755KD5p2/5aKZ44CB5Z+O5biC6YGT6Lev5peB55qE5qCR5pyo6YO95piv5Zyo5Lyg5pKt6L+H56iL5Lit5YeP5byx5Zmq5aOwPC9wPg==
- 答案：RA==
PGRpdj7mkanmiZjovabnmoTmtojlo7DlmajvvIzmmK/lnKjlo7DmupDlpITlh4/lvLHlmarpn7PvvIxB6YCJ6aG56ZSZ6K+v77yb5YWs6Lev5Lik5peB55qE6YCP5piO546755KD5p2/5aKZ44CB5Z+O5biC6YGT6Lev5peB55qE5qCR5pyo77yM5piv5Zyo5Lyg5pKt6YCU5b6E5Lit5YeP5byx5Zmq6Z+z77yMQuOAgUPpgInpobnplJnor6/vvJvlt6XljoLnlKjnmoTpmLLlmarlo7DogLPnvanvvIzmmK/lnKjkurrogLPlpITlh4/lvLHlmarpn7PvvIxE6YCJ6aG55q2j56GuPGJyPjwvZGl2Pg==
