Which river is called the "The Great River" in America？
A. Mississippi River.
B. Ohio River.
Colorado River.
D. Columbia River.
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The National Health Service of U.K. was first established in
A. 1929.
B. 1938.
C. 1948
D. 1956
______has the worlds largest coral reef "the Great Barrier Reef".
A. Canada
B. Australia
C. Ireland
D. New Zealand
"If sounds too good to be true, it is." means
A. when something good happens, it is expected to be true.
B. something unbelievably good usually proves to be untrue.
C. it is indeed good, though you can not believe it.
D. something that is true always sounds good.
According to the interviewee, what made the mammography screening decision "a perfect storm"？
A. The timing of the release of the decision.
B. The number of patients involved.
C. The lack of solid evidence.
D. The intervention of the Congress.
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