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【简答题】
()()()构成病害发生的三要素。
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皮皮学刷刷变学霸
举一反三
【单选题】He'd better resign from his post, ______?
A.
wouldn't he
B.
shouldn't he
C.
couldn't he
D.
hadn't he
【单选题】下列关于胸膜、胸膜腔和胸腔的描述不正确的是（）。
A.
胸腔容积比胸廓范围小
B.
脏、壁两层胸膜互相连续
C.
胸廓和膈围成胸腔
D.
胸膜腔为负压，仅有少量浆液
E.
左、右肺分别位于左、右胸膜腔内
【单选题】American employees don't envy the boss who earns much more because
A.
they resign themselves to their fate.
B.
they have a strong sense of security.
C.
they are tolerant as well as generous.
D.
they have a fair chance to rise in rank.
【简答题】(3)删除程序 1 模式按钮选择 “()”。 2 按下功能键 (),输入地址O,输入要删除的程序号,如00123。 3 按 ()键即可完成单个程序(00123)的删除。
【多选题】下列关于胸腔负压的描述正确的是
A.
使肺维持在扩张状态、不萎陷
B.
促进静脉血液及淋巴液的回流
C.
深吸气时胸腔负压减小
D.
呼气时胸廓回缩胸腔内压转为正压
E.
平静呼吸时胸腔内压都低于大气压
【单选题】The unrighteous officer prefers to resign ______ part in such dishonest business deals.
A.
than take
B.
than to take
C.
rather than take
D.
rather than to take
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