第1题:
I mean I have plans and I plan to see them().
A、through
B、by
C、on
D、off
第2题:
A、Now that
B、So that
C、For
D、Because
第3题:
A、who
B、what
C、which
D、it
第4题:
第5题:
Text 3
Everyone has heard of the San Andreas fault, which constantly threatens California and the West Coast with earth- quakes. But how many people know about the equally serious New Madrid fault in Missouri.'?
Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe.
Buildings in the area were almost dest oyed. Whole forests fell at once, and huge cracks opened in the ground, allowing smell of sulfur to filter upward.
The Mississippi River itself completely changed character, developing sudden rapids and whirlpools. Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Madrid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earth- quakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington D.C. Scientists now know that America's two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the movement of these two masses suddenly lurches forward.
The New Madrid fault, on the other hand, is a vertical fault; at some point, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now', the rock continues to settle downwards, and sudden sinking motions trigger earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern Illinois.
Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but rite scientists say they have no method of predicting when a large earthquake will occur.
31. This passage is mainly about ______.
A) the New Madrid fault in Missouri
B) the San Andreas and the New Madrid faults
C) the causes of faults
D) current scientific knowledge about faults
第6题:
You may get consumers who want very high quality services satisfied, but at a higher price. And the people who want no-frills service and cheap product will also get it at the other end of the market. So competition allows a range of variety to occur in a market. The benefit to society of competition is that it makes a major contribution to the fundamental economic issue, which is the scarcity of productive resources. It means that on the production side, there is maximum pressure to conserve the use of those scarce productive resources. On the demand side it also rations consumer demand appropriately, and it also tends to mean that the variety of consumer needs can be met.
1. From the first paragraph of the passage we can know that usually there are ()kinds of consumers who may get satisfied in a market.
A. two
B. three
C. four
2. What does “it” in the first sentence of paragraph 2 refer to()
A. fundamental economic issue
B. the scarcity of productive resources
C. The benefit of competition
3. The sentence in paragraph 1“So competition allows a range of variety to occur in a market” means ().
A. competition makes the market supply various products and services
B. competition makes a lot of things occur in a market
C. competition makes different things occur in a market
4. On the demand side competition also ()appropriately.
A. meets consumer needs
B. makes consumer rational
C. makes consumer satisfied
5. The best title of this passage is ().
A. Fundamental Economic Issue
B. The Benefit of Competition
C. Consumer Demand and Market
第7题:
View the Exhibit exhibit1 to examine the series of SQL commands. View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline. The baseline in the first row of the Exhibit is created when OPTIMIZER_MODE was set to FIRST_ROWS.Which statement is true if the SQL query in exhibit1 is executed again when the valueof OPTIMIZER_MODE is set to FIRST_ROWS?()
A. The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.
B. The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.
C. The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.
D. The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.
第8题:
From the passage, how many places have the name Valencia?
A. One.
B. Two.
C. Three.
D. Four.
第9题:
A. LDP uses Down Stream On Demand.
B. RSVP uses Down Stream On Demand.
C. LDP uses Down Stream Unsolicited.
D. RSVP uses Down Stream Unsolicited.
第10题: