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【单选题】
听诊心率正常而不整齐，可除外（）A.
第一度房室传导阻滞
B.
第二度Ⅰ型房室传导阻滞
C.
室性期前收缩
D.
心房颤动
E.
伴有4：1和3：1房室传导比例的心房扑动
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【简答题】阅读理解。 Do you know why different animals or pests have their special colors? Colors in them seem to be used mainly to protect themselves. Some birds like eating locusts (蝗虫) , but birds cannot easily c...
【单选题】The main idea of paragraph 2 is______.
A.
colors may have effect on our work and study
B.
colors do have effect on our moods (情绪)
C.
light and bright colors make people happy
D.
factory workers can work better in a bright room
【简答题】Have you wondered why different animals or pests have their particular colors? Colors in them seem to be used mainly to protect themselves. Birds, especially seagulls are very fond of locusts, but bir...
【单选题】以下关于单层工业厂房的说法，不正确的是( )。
A.
单层工业厂房，根据结构组成分为墙体承重结构和骨架承重结构
B.
外墙围护系统的主要作用在于承受墙体和构件的自重以及作用在墙体上的风荷载
C.
支撑系统是厂房的主要承重构件，承受着吊车自重、吊车梁、墙体上的荷载，以及山墙传来的风荷载
D.
屋盖结构由屋面板、屋架及天窗架、托架等组成
【单选题】What is the main idea of the passage?
A.
Light colors make people feel more cheerful.
B.
Colors can influence people's moods.
C.
Dark colors make people feel sad.
【简答题】根据短文内容，判断正(T)误(F)。 In general, people talk about two groups of colors: warm colors and cool colors. Scientists think that there are also two groups of people: people who prefer warm colors and people ...
【简答题】（）是屋盖结构的主要承重构件，直接承受屋面荷载，有的还要承受悬挂式梁式起重机、天窗架、管道或生产设备等荷载，对厂房的安全、刚度、耐久性、经济性等起着至关重要的作用。
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