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【单选题】
矩形截面梁,若其截面高度和宽度都增加一倍,则其强度提高到原来的( )倍。A.
4
B.
8
C.
16
D.
32
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【单选题】听力原文：W: I went to the supermarket at 8:30 yesterday morning, and I didn't come back to see Bob off to school. M: I went to Bob's school at 4:20 because I had a very important appointment with his teac...
A.
8:30.
B.
8:20.
C.
4:20.
D.
4:30.
【单选题】It was because I wanted to buy a dictionary ______ I went downtown yesterday.
A.
but
B.
and
C.
why
D.
that
【简答题】气门组有气门、气门弹簧座、 气门导管 、 气门弹簧 和 锁片 等组成。
【单选题】--- Where did you go in China? --- __________.
A.
I went there by train
B.
Last year
C.
I went to Xi’an and Guilin
【简答题】患儿，5岁。多次患肺炎，查体无发绀，胸骨左缘第2肋间闻及响亮的连续性机器样杂音，伴有震颤，脉压增宽，有周围血管搏动征。以下哪项诊断最正确A、肺动脉口狭窄 B、室间隔缺损 C、动脉导管未闭 D、法洛四联症 E、完全性大动脉错位 该病的CT表现为A、主动脉弓降部内下壁与左肺动脉上外壁之间有直接连接 B、降主动脉内下壁与左肺动脉上外壁之间有直接连接 C、主动脉弓降部上外壁与左肺动脉内下壁之间有直接连接 ...
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