The information was later admitted______obtained from unreliable sources.
A.that it was
B.that it has been
C.to be
D.to have been
第9题
根据下文回答第 128~131 题。
A.小檗碱
B.麻黄碱
C.甜菜碱
D.槟榔碱
E.咖啡因
第 128 题 常温下呈液态的是()
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!