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【单选题】
未饱和空气(露点15°C)在与水隔绝的条件下定压从25°C降温至10°C,湿空气的含湿量__,相对湿度___。A.
升高/降低
B.
降低/升高
C.
升高/不变
D.
不变/不变
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【单选题】—Where is Mike? He asked me to go out for a walk this evening. —Maybe he ______ TV in the living room now. [ ]
A.
watched
B.
will watch
C.
is watching
D.
watch
【单选题】—Where is Mike? He asked me to go out for a walk this evening. —Maybe he _____ TV in the living room. [ ]
A.
watched
B.
will watch
C.
is watching
【单选题】利用正应力强度条件,可进行 ( )三个方面的计算
A.
强度校核、刚度校核、稳定性校核
B.
强度校核、刚度校核、选择截面尺寸
C.
强度校核、选择截面尺寸、计算允许荷载
D.
强度校核、稳定性校核、计算允许荷载
【单选题】She _____ science on Monday.But she _____ on Tuesday. [ ]
A.
doesn't have,has it
B.
isn't have,has it
C.
doesn't have,has one
D.
isn't have,has one
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