皮皮学，免费搜题
登录
搜题
【简答题】
Sports stadiums now becomes a source of noise pollution because of ______.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What can contribute to drought?
A.
over-farming and soil erosion
B.
soil moisture
C.
water conservation
D.
natural disasters
【单选题】高速 路上巡警开车在公路上以 8 0km/h 的恒定速度巡查,在同一车道上巡警车向前方的一辆轿车发出一个已知频率的电磁波,如果该电磁波被那辆轿车反射回来时,巡警车接收到的电磁波频率比发出时低,说明那辆轿车的车速 ( )
A.
高于 8 0km/h
B.
低于 8 0km/h
C.
等于 8 0km/h
D.
无法确定
【简答题】A．mat B．what C．how D．whom
【单选题】以下关于jQuery的说法中错误的是()。
A.
jQuery是JavaScript的程序库之一，它是对JavaScript的封装
B.
相对于JavaScript，jQuery语法更为简单，能大幅提高开发效率
C.
相对于JavaScript，jQuery解决了大部分浏览器兼容性问题，减少了出错的概率
D.
jQuery功能强大，能完全代替JavaScript
【多选题】According to the professor, what did the Soil Erosion Act do to improve soil conservation? Choose 2 answers.
A.
It provided special equipment for farmers.
B.
It encouraged farmers to use better farming techniques.
C.
It turned damaged farmland into permanent grassland.
D.
It increased the variety of crops grown on each farm.
【单选题】What is most likely to happen to rainwater when it falls on sandy soil?
A.
It sinks in slowly, days later the soil is still saturted.
B.
It sinks in quickly, a few hours later the soil is almost dry.
C.
It runs off the surface and does not enter the soil.
D.
It cracks the surface of the soil.
相关题目：