Other scientists were skeptical of the report because ______.
A. cancer takes a long time to develop
B. single genes were not thought to cause cancer
C. genes would take years or even decades to bring about cancer
D. the researcher's report was too simple
查看答案
A．onlyB．bestC．sameD．biggest
A. only
B. best
C. same
D. biggest
亨利定律的表达式之一为pe=Ex，若某气体在水中的亨利系数E值很大，说明该气体为易溶气体。()
A. 正确
B. 错误
流通是生产和消费之间不可缺少的桥梁。()
A. 正确
B. 错误
2006年江苏省平均每月的工业增加值总量约()。
A. 720-770亿元
B. 770-820亿元
C. 820-870亿元
D. 870-920亿元
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