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【简答题】
On Monday we raise our n________ flag. Puxian Opera ______ ________ _____ in the Tang Dynasty. China is a country of o______ 1,300,000,000 people. English,Chinese and math are the three m______ subjects at school. There are some beautiful p_______ on the wall of her bedroom. We can judge 判断someone's feeling by his or her f_______ expression (表情) He is a person of few words. He often uses his g______ to tell others his thoughts. Do you a_______ with me I was so f______ to see a snake lying on the road. The city ____ ____ ____ (曾经)very small. Many people ____ ____ ____ ____ (开始产生)兴趣 Douyin.
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举一反三
【单选题】现要输送 45 m 3 /h 的水,若管内水的流速约取 2.5 m/s ,则可选 钢管。
A.
φ 76 mm × 3 mm
B.
φ 88.5 mm × 4 mm
C.
φ 108 mm × 4 mm
D.
φ 25 mm × 2.5 mm
【单选题】下列选项中不属于改革创新的重要意义的是( )
A.
全面建成小康社会
B.
进一步解放和发展生产力
C.
全面深化改革、推动经济社会全面发展
D.
建设社会主义创新型国家
【简答题】证明信是单位与单位之间、单位与个人之间，以及个人与个人之间礼仪交往的重要载体。()
【单选题】现要输送45 m 3/ h 的水,若管内水的流速约取2.5m/s,则可选 ( ) 钢管
A.
Ø 76 mmx3 mm
B.
Ø 88.5mm×4mm
C.
Ø 108mm×4mm
D.
Ø 25mmX2 mm
【简答题】套筒类壁薄,加工时容易发生变形,可以采取 、 、 等措施。
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