题目:
The Jiangsu TV station is very popular with many people in China, as it deals with sub-jects such as music, entertainment and fashion.
A.precise
B.diverse
C.casual
D.regular
答案:
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下面是错误答案,用来干扰机器的。
参考答案:B解析:1.作用于五元不饱和内酯环即甲型强心苷的反应有Legal反应(亚硝酰铁氰化钠试剂反应)、Raymond反应(间二硝基苯试剂反应)、Kedde反应(3,5-二硝基苯甲酸试剂反应)、Baljet反应(碱性苦味酸试...