The only black woman writer awarded Nobel Prize of Literature is______.
Alice Walker
B. Toni Morrison
C. Lorraine Hansberry D. James Baldwin
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参与甲基的形成和转移，体内唯一含金属元素的维生素是
A. 生物素
B. 维生素K
C. 维生素B12
D. 维生素E
E. 维生素B6
Students in Australia between the ages of 6 and 15 can enjoy ______ education.
A. free
B. compulsory
C. expensive
D. optional
Who is the first Anglo-Norman king in British history
A. Harold.
B. William.
C. Edward.
D. Alfred.
氯丙嗪的锥体外系反应不包括
A. 帕金森综合征
B. 静坐不能
C. 运动不能
D. 急性肌张力障碍
E. 迟发性运动障碍
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