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【判断题】
胃属于内分泌系统A.
正确
B.
错误
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皮皮学刷刷变学霸
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【简答题】下列选项中说法错误的是() A. '国际法'这个名称是奥本海最先提出的 B.格劳秀斯是近代国际法的创始人 C.13年至18年的威斯特伐里亚公会是近代国际法产生的标志 D.普芬道夫的《战争与和平法》是第一部具有完整体系的国际法著作
【单选题】Will, Bill, and Phil decide to study an extra hour for an exam. Instead of studying, they could have gone out to eat, played football, or watched TV. Which of the following statements is correct?
A.
The benefit the three students receive must be the same because they all make the same choice.
B.
The students made a rational choice as long as they face no scarcity.
C.
The students could each have different opportunity costs.
D.
The marginal cost of the decision is the same if they make the same score on the exam.
E.
Going out to eat, playing football, and watching TV are all called sunk costs.
【单选题】- I think students can have cell phones to help with their studies. - . They often use them to play games instead of studying.
A.
I don think so
B.
All right
C.
You are welcome
D.
Good idea
【单选题】— I think students can have cell phones to help with their studies. — ________. They often use them to play games instead of studying.
A.
I don't think so
B.
All right
C.
You are welcome
D.
Good idea
【单选题】下列各项不属于施工安全管理策划安全目标的是( )。
A.
无重大设备、火灾和中毒事故
B.
无环境污染和严重扰民事件
C.
控制和杜绝因公负伤、死亡事故的发生(负伤频率在36‰以下、死亡率为零)
D.
一般事故频率控制目标(通常在6‰以内)
【单选题】下列各项不属于施工安全管理策划安全目标的是( )．
A.
无重大设备、火灾和中毒事故
B.
无环境污染和严重扰民事件
C.
控制和杜绝因公负伤、死亡事故的发生（负伤频率在36‰以下、死亡率为零）
D.
一般事故频率控制目标f通常在6%以内）
【单选题】Instead of studying people who were sick with smallpox, he began to study people who ______ it but never got sick
A.
exposed to
B.
exposed
C.
were exposed to
D.
was exposed to
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