Look at the following researchers(Questions 19-22)and the list of findings below

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问题 Look at the following researchers(Questions 19-22)and the list of findings below.
Match each researcher with the correct finding.
Write the correct letter A-G in boxes 19-22 on your answer sheet.
List of Findings
A Early language evolution is correlated to body movement and thus affecting the preference of use of one hand.
B No single biological component determines the handedness of a child.
C Each hemisphere of the brain is in charge of different body functions.
D Language process is mainly centered in the left-hemisphere of the brain.
E Speech difficulties are often caused by brain damage.
F The rate of development of one side of the body has influence on hemisphere preference in fetus.
G Brain function already matures by the end of the fetal stage. [br] Marian Annett

选项

答案 B

解析 定位于原文Section A第一个分段落“Marian Annett…hypothesized that no singlegene determines handedness”。选项B的“biological component”对应原文“gene”,所以答案为B。
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