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Question 1 of 40
1. A log grabber has a long arm __________, which stretches out to pick up logs.
Question 2 of 40
2. A home computer ……………….an opportunity for convenient and efficient work at home.
Question 3 of 40
3. Eli Whitney’s milling machine remained unchanged for a century and a half because ………………was so efficient.
Question 4 of 40
4. Some of the rainwater from clouds evaporates before ……………….
Question 5 of 40
5. Once an offending allergen has been identified ……………..tests, it is possible for the doctor to give specific desensitizing injections.
Question 6 of 40
6. Sometimes ………………..wears people out and is worse than the lack of sleep itself.
Question 7 of 40
7. Although dissimilar in almost every other respect, birds and insects have both evolved efficient ………………….capabilities.
Question 8 of 40
8. The wheel, ………………..has remained important for 4,000 years, is one of mankind’s first inventions.
Question 9 of 40
9………………………. children master the basics, advanced development becomes easier.
Question 10 of 40
10. …………………….. there is a close correlation between stress and illness.
Question 11 of 40
11. …………………… is often used in soups and sauces.
Question 12 of 40
12. Perspiration increases …………………….. vigorous exercise or hot weather.
Question 13 of 40
13. Goddard developed the first rocket to fly faster …………………..
Question 14 of 40
14. if the unemployment rate ………………………sharply, the drop may still be temporary.
Question 15 of 40
15. Studies indicate ……………………. collecting art today than ever before.
Question 16 of 40
16. The surface of the tongue covered with tiny taste buds.
Question 17 of 40
17. Cosmic distance is measured on light-years.
Question 18 of 40
18. A million of tourists from all over the world visit New York every year.
Question 19 of 40
19. Whereas Earth has one moon, the planet call Mars has two small ones.
Question 20 of 40
20. An ardent feminist, Margaret Fuller, through her literature, asked that women be given a fairly chance.
Question 21 of 40
21. No longer is scientific discovery a matter of one person alone working.
Question 22 of 40
22. The scientific method consists of forming hypotheses, collect data, and testing results.
Question 23 of 40
23. All data in computer are changed into electronic pulses by an input unit.
Question 24 of 40
24. The basic law of addition, subtraction, multiplication and division are taught to all elementary school students.
Question 25 of 40
25. A largely percentage of Canadian export business is with the United States.
Question 26 of 40
26. The famous Jim Thorpe won both the pentathlon or decathlon in the 1912 Olympic Games.
Question 27 of 40
27. Acute pharyngitis pain is most often caused by a viral infection, for who antibiotics are ineffective.
Question 28 of 40
28. Knowledges about cultures provides insights into the learned behaviors of groups.
Question 29 of 40
29. A fiber-optic cable across the Pacific went into service in April 1989, link the United States and Japan.
Question 30 of 40
30. Dislike the gorilla, the male adult chimpanzee weighs under 200 pounds.
Question 31 of 40
31. Before lumberjacks had mechanical equipments, they used horses and ropes to drag logs.
Question 32 of 40
32. George Gershwin not only composed popular songs for musicals, also wrote more serious concerts.
Question 33 of 40
33. Among the world’s 44 richest countries, there has been not war since 1945.
Question 34 of 40
34. Caricature, a type of comic exaggeration, is common used in political cartoons.
Question 35 of 40
35. One and more sentences related to the same topic form a paragraph.
Question 36 of 40
36. Mirrors done of shiny metal were used by the Egyptians in ancient times.
Question 37 of 40
37. Mark Twain’s Adventures of Huckleberry Finn are one of America’s national treasures.
Question 38 of 40
38. In his early days as a direct, Charlie Chaplin produced 62 short, silent comedy films in four years.
Question 39 of 40
39. Some studies show that young babies prefer the smell of milk to those of other liquids.
Question 40 of 40
40. Plants absorb water and nutrients and anchoring themselves in the soil with their roots.