B) poorly-educated Americans will find it difficult to make use of the weapon
C) the wide use of the weapon will push up living expenses tremendously
D) the cost of the weapon will put citizens on an unequal basis
20. From the tone of the passage we know that the author is ________.
A) doubtful about the necessity of keeping H-bombs at home for safety
B) unhappy with those who vote against the ownership of H-bombs
C) not serious about the private ownership of H-bombs
D) concerned about the spread of nuclear weapons
Passage Three
Questions 21 to 25 are based on the following passage.
Sign has become a scientific hot button. Only in the past 20 years have specialists in language study realized that signed languages are uniquea speech of the hand. They offer a new way to probe how the brain generates and understands language, and throw new light on an old scientific controversy: whether language, complete with grammar, is something that we are born With, or whether it is a learned behavior. The current interest in sign language has roots in the pioneering work of one rebel teacher at Gallaudet University in Washington, D. C., the worlds only liberal arts university for deaf people.
When Bill Stokoe went to Gallaudet to teach English, the school enrolled him in a course in signing. But Stokoe noticed something odd: among themselves, students signed differently from his classroom teacher.
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