[单项选择]
Saving time and labor, cartoonists generally draw the hands of their characters with only three fingers and a thumb．（）

A. Save
B. Saved
C. To save
D. The saving

更多"Saving time and labor, cartoonists "的相关试题:

[填空题]Paragraph Three Daylight saving time began in the United States during World War I, primarily to save fuel by reducing the need to use artificial lighting. Although some states and communities observed daylight saving time between the wars, it was not observed nationally again until World War II.

查看答案

[单项选择]

The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need; (1) is truly the mother of invention. People usually devise tools to (2) for natural deficiencies. For example, people invented weapons to defend (3) from physically superior (4) . But (5) is only one incentive for inventions. People also invent (6) tools to (7) certain established tasks more efficiently. For instance, people developed the bow and arrow from the (8) spear or javelin in order to shoot (9) and strike with greater strength.
(10) civilizations developed, greater work efficiency came to be demanded, and (11) tools became more (12) . A tool would (13) a function until it proved (14) in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the (15)
A. imagination
B. creativity
C. necessity
D. illusion

查看答案

[单项选择]Daylight Saving Time begins on Monday, April 3, 2005. People in most parts of the United States will turn their clocks ahead one hour.
The official (正式的) time to turn your clock ahead is early in the morning, April 3. Two a.m. becomes three a.m. Sunday will have only 23 hours. (Most people changes their clocks before they go to sleep Saturday night.)
In the fall, people turn their clock back an hour. This saying helps people remember which way to turn the clock: "Spring ahead; fall back." (Spring and fall each have two meanings here.)
We use daylight Saving Time in order to save electricity (电) . We need one less hour of light from electricity each day in the summer.Daylight Saving Time is used in the summer.
[A] Right. [B] Wrong. [C] Doesn’t say.

查看答案

我来回答:

提交

[单项选择] Saving time and labor, cartoonists generally draw the hands of their characters with only three fingers and a thumb．（）A. SaveB. SavedC. To saveD. The saving

更多"Saving time and labor, cartoonists "的相关试题:

[单项选择]
Saving time and labor, cartoonists generally draw the hands of their characters with only three fingers and a thumb．（）

A. Save
B. Saved
C. To save
D. The saving