A: like of
B: more
C: than do
D: than does
举一反三
- The air inside a house or office building often has higher concentrations of contaminants ____ heavily polluted outside air. A: than does B: more C: as some that are D: like of
- The air inside .a house on office building often has more contaminants（）the heavily polluted air outside. A: than does B: as C: as some that are D: than that of
- Growing evidence indicates air within homes and other buildings can be more seriously polluted than industrialized cities.
- The freight rate of air express is much higher than that of other air transportation mode.
- The freight rate of air express is much higher than that of other air transportation mode. A: 正确 B: 错误
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18. According to the professor, why are tornadoes able to destroy houses so easily? A: They create differences in air pressure inside and outside the house. B: Humid air rises rapidly toward the top of the house. C: Rotating air enters the house. D: Lower air pressure inside the house causes it to collapse.
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One benefit the author mentions is that the system______. A: uses no electricity B: has a fire-safety shutoff C: does not pollute the air in the house D: pollute the air in house
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House prices are more higher in Beijing than in many other places in China. A: House B: more higher C: in D: many other places
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Generally speaking, air will be heavily polluted ______ there are factories. A: what B: which C: where
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__________ does not support topic sentence: I would sooner be in the Air Force than any other service branch. A: a. I’m more interested in flying than in any other military occupation. B: b. There are greater opportunities for advancement in the Air Force. C: c. Service in the Air Force is far more exciting than that in the Navy. D: d. My cousin went to college after his graduation from high school.