A. the scientific rules are important B. people learn best when they look at something C. visitors prefer to learn from museums D. people become more interested if they take part in 参考答案:D 答案解析:由第三段第一句“More and more directors have realized that people learn best when they become part of what t
第7题: [单项选择]杏仁的炮制作用为()。 A. 促进酶解反应 B. 使苦杏仁内服后迅速释放出足量的氢氰酸 C. 杀酶,防止苷水解 D. 使氢氰酸量减少,降低毒性 E. 可使杏仁入汤剂时有更多的氢氰酸溶出 参考答案:C