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【多选题】
楼梯剖面图中楼梯段的配筋标注内容有( )A.
梯板类型
B.
梯板厚度
C.
梯板上部配筋
D.
梯板下部配筋
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】登门拜访他人时,以下哪种做法是正确的?
A.
未经主人邀请和许可，不进入卧室
B.
入座之后不能走动
C.
主动参观主人家里的摆设，自由进入各个房间
D.
随意翻看桌上的书籍、杂志
【单选题】Hillen used to be very shy, but she has grown________it now.
A.
without
B.
over
C.
away
D.
out of
【单选题】By saying that 'blues and jazz overlapped' (the first sentence of the last paragraph), the author means______
A.
blues developed in the same pattern as jazz did'
B.
the two music forms shared some features
C.
people can never tell one from the other
D.
jazz is the source from which blues evolved
【单选题】She has to be very because she hasn’t much money.
A.
economic
B.
economical
C.
economics
D.
economy
【简答题】Blues music first became __________ with the American public in the nine twenties
【单选题】According to paragraph 4，which of the following statements is NOT true?
A.
She has to learn to repair sails．
B.
She has to be her own teacher．
C.
She has to be very fit．
D.
She has trained herself to sleep for about 20 minutes at a time．
【简答题】试述心房颤动的心电图特征。
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