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【判断题】
旅游一经产生便有了固定统一的定义。 ( )A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】We had to learn chemical（）at school but I can only remember H 2 O for water.
A.
principles
B.
prescriptions
C.
formula
D.
formulae
【单选题】When the author smelled cut grass again for the first time, she______.
A.
cried out loudly
B.
wept in silence
C.
couldn't help bursting into tears
D.
was in the American Museum of Natural History
【单选题】The author cried on the way home to the local humane society because
A.
she hated to have to send away the dogs.
B.
the dogs might end up being killed in the shelters.
C.
the shelters might refuse to take the dogs.
D.
the new owners might maltreat the dogs.
【单选题】That the author cried in front of other men reveals________ 查看材料
A.
the effect of bluegrass music upon men
B.
the effect of alcohol on men's behaviors
C.
men's need to release their deep emotions
D.
men's need to cultivate intimate friendship
【单选题】知情同意应当包含的内容错误的是
A.
研究目的、基本研究内容、流程、方法及研究时限
B.
隐藏可能给受试者带来的不适和风险
C.
研究者基本信息及研究机构资质
D.
对受试者的保护措施
【单选题】The mason why the author cried after handing over the breakfast meals to the two men is that ______.
A.
she failed to help these two Poor men out
B.
she failed her project for not smiling
C.
she conveyed hope for the poor men and felt very glad
D.
she was net a pious religious believer
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