皮皮学,免费搜题
登录
搜题
【简答题】
阅读理解。 High-tech machines have made life easier for millions around the world. However, some people still prefer low-tech ways of doing things. Here's an example of why this is happening. You can microwave a frozen hamburger in 60 seconds. However, it won't taste as good as one you cook on the stove. And if you're in that much of a hurry, you probably won't take time to toast the bun. High-tech cooking saves time, but it doesn't make for better-tasting meals. Most people get their news from high-tech sources like television or the Internet. This has many advantages. For example, electronic news is more up to date than newspapers or magazines. It's also more exciting to see live and videotaped news events than photographs. However, newspapers and magazines have some important advantages. They give more background and details. They also let you read the parts that are important to you and skip the rest. Other high-tech timesavers have similar disadvantages. For examples, most people use the phone or e-mail to stay in touch with friends and family members who live in other places. But when you use the Internet or the phone, you don't always think carefully about what you are saying, and sometimes you forget the important things you want to communicate. Similarly, when you word-process a homework assignment instead of handwriting it, you can check your spelling electronically and put in fancy headings. However, some students are so busy with the computer that they don't pay enough attention to the actual words they are writing. 1. Which of the following statements is TRUE according to the passage? A. The writer likes high-tech cooking. B. Low-tech cooking produces better-tasting meals. C. High-tech news programs always keep you reading what is important to you. D. Handwritten homework is better than word-processed homework. 2. How does the writer feel about high-tech tool? A. Better late than never. B. Easy come, easy go. C. Every coin has two sides. D. Learn to walk before you run. 3. What is the main subject discussed in the text? A. High-tech vs. low-tech. B. Advantages vs. disadvantages. C. Newspapers and magazines vs. television and the Internet. D. Word-processing vs. handwriting.
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】儿童少年呼吸系统的特点( )
A.
胸廊狭小,气道较狭窄,呼吸时的弹性阻力小,气道阻力大
B.
呼吸肌力量弱,呼吸的深度不及成人
C.
最大通气量的相对值低于成人
D.
呼吸频率较慢,肺活量小
【单选题】在烷烃的自由基取代反应中 , 不同类型的氢被取代活性最大的是:
A.
伯氢
B.
仲氢
C.
叔氢
D.
甲基氢
E.
不能确定
【单选题】在烷烃的自由基取代反应中 , 不同类型的氢被取代活性最大的是:
A.
不能确定
B.
甲基氢
C.
叔氢
D.
仲氢
E.
伯氢
【单选题】儿童少年呼吸系统的特点
A.
胸廓狭小,气道较狭窄,呼吸的弹性阻力小,气道阻力大
B.
呼吸肌力量弱,呼吸的深度不及成年人
C.
最大通气量的相对值低于成人
D.
呼吸频率较慢,肺活量小
【判断题】当某一平面任意力系的主矢量等于零时,则该力系一定有一合力偶。
A.
正确
B.
错误
【单选题】在烷烃的自由基取代反应中,不同类型的氢被取代活性最大的是
A.
伯氢
B.
仲氢
C.
叔氢
D.
那个都不是
【单选题】在烷烃的自由基取代反应中 , 不同类型的氢被取代活性最大的是
A.
一级
B.
二级
C.
三级
D.
都不是
【多选题】儿童少年呼吸系统的特点有
A.
胸廓狭小
B.
呼吸肌力量弱
C.
肺容量也较小
D.
摄氧量较成人少大
【判断题】若某一平面任意力系对其作用面内某一点之矩的代数和为0,即∑11/10(E)=0时,则该力系不可能简化为一合力偶。( )
A.
正确
B.
错误
【判断题】若某一平面任意力系的主矢为零 ,则该力系一定有一合力偶。
A.
正确
B.
错误
相关题目: