From 1946 until 1954, the Vietnamese had struggled for their independence from France during the First Indochina War. At the end of this war, the country was temporarily divided into North and South Vietnam. North Vietnam came under the control of the Vietnamese Communists who had opposed France and who aimed for a unified Vietnam under Communist rule. The South was controlled by Vietnamese who had collaborated with the French.
The United States became involved in Vietnam because it believed that if all of the country fell under a Communist government, Communism would spread throughout Southeast Asia and beyond. This belief was known as the "domino (多米诺骨牌)theory." The U.S. government, therefore, supported the South Vietnamese government. This government’s policies led to rebellion in the South.
In 1965 the United States sent in troops to prevent the South Vietnamese government from collapsing. Finally, however, the United States failed to a
A. Vietnam War
B. Independence War
C. the First Indochina war
D. the Indochina War
Until 1983, Tillson Lake had been a lovely weekend and vacation place for many families. Then everything changed. During the Fourth of July weekend, residents woke up one morning to find that the lake had disappeared.
Some people didn’t believe what they were seeing. They looked again, but to their amazement they found they had been right the first time. The lake was simply no longer there. In its place was a muddy crater hollow, 30 feet deep. It was as if the lake had been a giant bathtub and someone had pulled the plug.
The lake’s owner, Joseph Unanue, did indeed pull the plug. That’s exactly what happened. The dam that held back the water to form the lake was falling apart, so government officials ordered him to repair it. They issued him a permit to lower the water level "five feet or more." He did much more. Mr. Unanue found that repairs to the dam would cost $ 100,000. He didn’t want to spend that much, so he opened the dam
A. have something to do with
B. lose one’s temper
C. pull the plug
D. complain about his action
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