第24题: [单项选择]上述处方中蓖麻油的作用是 A. 增塑剂 B. 致孔剂 C. 填充剂 D. 润湿剂 E. 溶剂 参考答案:A
第25题: [单项选择]In 1942 the US anthropology student concluded that the Siriono
A were unusually aggressive and cruel.
B had had their way of life destroyed by invaders.
C were an extremely primitive society.
D had only recently made permanent settlements. 参考答案:C