皮皮学,免费搜题
登录
搜题
【简答题】
It all starts with a tree.In fact, it starts with several trees.Since the first modern guitars were made in northern Spain over 150 years ago, crafts persons have known the wood to be used is important in making a guitar. Every guitar is made of several different kinds of wood.Each piece is carefully chosen and then cut to fit the part of the guitar for which it is designed.The most important part of a guitar is the soundboard--the piece of wood with a large hole that lies under the strings(弦,线).Guitar makers are careful to make the soundboard just the right shape and thickness.Then they fix stripes(长条)of wood across the inside in a special pattern, which helps strengthen the soundboard and improves the tone of the guitar. Wood for the curvy (弯曲的) sides of the guitar must be soaked (浸湿) in water and bent over a hot iron pipe.When all the pieces of the guitar are ready, they are carefully stuck together with glue.Special woodworking tools are used to shape and smooth the neck of the guitar.The craftsperson must make sure that the neck is perfectly centered over the soundboard. Then it is time to use varnish(亮光漆).This brings out the beauty of the wood.Varnish also improves the sound of the guitar but too much varnish makes the guitar sound flat and dull. Finally guitar strings are attached and tightened to make just the right musical tones.Then it’s time to play a song.(273 words) 小题1:The best title for this passage may be _____. A.How to Make a Guitar B.What a Guitar Is Made of C.How to Play the Guitar D.Where to Find the Best Guitar 小题2:In order to make the soundboard strong, _____. A.people tie strings to the top of it B.stripes are stuck across the inside of wood C.a large hole is made in it D.several pieces of wood are glued together 小题3:Which of the following doesn’t affect the sound of a guitar? A.Soundboard B.strings C.neck D.color 小题4:What will happen to the guitar if too much varnish is used to the wood? A.The beauty of the wood can’t be seen clearly. B.The sound of the guitar will be flat and dull. C.The tone of the guitar will be improved D.A guitar will become thin
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】咖啡碱因最初是在__中发现,故名咖啡碱。
A.
咖啡
B.
C.
可乐
D.
可可
【单选题】根据《建筑法》,不属于违法分包的是( )。
A.
分包单位将其承包的工程再分包
B.
总承包单位将主体结构工程分包给具有相应资质条件的单位
C.
总承包单位将桩基础工程施工发包给具有相应资质条件的单位
D.
总承包单位将部分主体结构工程发包给其有相应资质条件的单位
【简答题】如图,设 是抛物线 上的一点. (Ⅰ)求该抛物线 在点 A 处的切线 的方程; (Ⅱ)求曲线 C 、直线 和 轴所围成的图形的面积.
【判断题】等于曲线 与直线 , 在 轴上方围成图形与下方围成图形的面积的代数和.
A.
正确
B.
错误
【判断题】双速三相异步电动机只能采取低速起停的控制方式。( )
A.
正确
B.
错误
【判断题】当 在 上为任意值,即 的值有正也有负,则 的值等于曲线 在 轴上方围成图形与下方围成图形的面积的代数和。
A.
正确
B.
错误
【简答题】十二指肠溃疡患者的胃液显微镜下可发现白细胞和______,有食物潴留时,可发现八叠球菌和酵母菌,还有幽门螺旋杆菌。
【判断题】环车预检时尽量不要与客户交流。
A.
正确
B.
错误
【判断题】钱学森在中国国防科技做出来不朽贡献。()
A.
正确
B.
错误
【单选题】根据《建筑法》,不属于违法分包的是( )。
A.
分包单位将其承包的工程再分包
B.
总承包单位将主体结构工程分包给具有相应资质条件的单位
C.
总承包单位将桩基础工程施工分包给具有相应资质条件的单位
D.
总承包单位将部分主体结构工程分包给具有相应资质条件的单位
相关题目: