In the first paragraph, the author introduces the topic by______.
A. justifying an assumption
B. describing a scene
C. making a comparison
D. challenging a theory
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同一部位，放大摄影条件与常规摄影相比，叙述正确的是
A. 两者条件相同
B. 需降低曝光量
C. 需增加曝光量
D. 很难确定增和减
E. 两者必须使用同种增感屏
The word "cushion"(Line 1, Paragraph 5)is closest in meaning to______.
A. relieve
B. reinforce
C. reveal
D. remove
According to Mark K. Levitan, the official measure of poverty seems to be______.
A. less comprehensive
B. potentially misleading
C. falsely low
D. entirely wrong
What can we infer from Paragraph 1 and Paragraph 2？
A. Dependence on food stamps may not have been counted in previous census.
B. Few people suffered from recession in New York than in other cities. .
C. The recession affects the New Yorkers in some subtle ways.
D. The household income in New York is higher than that in other cities.
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