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【判断题】
有限责任公司是典型的人合企业A.
正确
B.
错误
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【单选题】If people ______ the traffic rules, there will be fewer accidents.
A.
will obey
B.
obey
C.
obeys
【简答题】（B） What does an astronaut eat in space? This is a question that will puzzle many, as people rarely think of that. In the early space-travel years, astronauts ate dehydrated (脱水的) foods that were eate...
【简答题】可以使用 String 类的 方法判断一个字符串的后缀是否是字符串 s 。
【判断题】People rarely obey the credibility principle though they know it's simple and rational.
A.
正确
B.
错误
【简答题】铁在人体内的运输和代谢需要铜的参与。在血浆中,铜以铜蓝蛋白形式存在,催化氧化 Fe 2+ 成 Fe 3+ ,从而使铁被运送到骨髓。试运用原子结构的基本知识解释为什么 Fe 2+ 易被氧化成 Fe 3+ ?
【单选题】Dogs who accompany blind people must learn______.
A.
to obey all orders
B.
to obey only safe orders
C.
never to cross busy roads
D.
to cross roads when commanded
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