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
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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.
Which of the following best summarizes the main idea of the text？
A. More financial support is a key to new technology.
B. Greater focus is required for ocean exploration.
C. Oil production has done great damage to the sea.
D. The United States can benefit more from deep-diving.
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