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【简答题】
The festival is a memorable day in life. All ethnic groups and regions have their own festivals. In China there are many 1. _______(tradition) festivals, among which the Spring Festival is the most important, followed by the Lantern Festival on the fifteenth day of the first lunar month. The Qingming Festival 2. ________(fall) on April 5 th in early spring, a time to remember one ’ s dead ancestor s and family members. For thousands of years, the Dragon Boat Festival 3. ________ (celebrate) by eating zongzi and racing dragon boats. The Mid-Autumn Festival is also an important occasion for family members to get together. When the moon rises, they will sit in the courtyard, 4. ________(watch) the full moon, eating moon cakes and singing moon poems. Western festival culture also has a long history. Valentine ’ s Day is a day for lovers to tell of their love. Carnival typically involves a public celebration or parade, during 5. ________ people wear masks and costumes. April Fool ’ s Day is traditionally a day to play practical jokes 6. ________ friends, family members, neighbors and others. And there are many traditions around Easter, such as Easter Bunny and Easter eggs. Decorating Easter eggs and Easter egg-hunt are activities that all children love to 7. ________(involve) with. Halloween activities include trick-or-treating, attending costume parties, carving 8. ________(pumpkin), telling scary stories, watching horror films and so on. Thanksgiving Day is a time for people to give thanks for 9. ________ they have. It is a day for families and friends to get together for a special meal. To celebrate Christmas Day, most families buy a Christmas tree 10. ________ decorate it with small things. Children are happy to wait for their presents from Father Christmas.
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【单选题】在101.325 kPa的压力下将蔗糖稀溶液缓慢降温时会析出纯冰。则相对于纯水而言,加入蔗糖将会出现:沸点( );
A.
升高
B.
降低
C.
不变
D.
无一定变化规律
【单选题】在 101.325 kPa 的压力下将蔗糖稀溶液缓慢降温时会析出纯冰。则相对于纯水而言,加入蔗糖将会出现沸点 。
A.
升高
B.
降低
C.
不变
D.
不规律变化
【单选题】在101.325 kPa的压力下将蔗糖稀溶液缓慢降温时会析出纯冰。则相对于纯水而言,蔗糖水溶液的凝固点要 。
A.
B.
C.
不变
D.
无规律变化
【简答题】一个尺寸为Æ60mm ́3mm的铝合金钢管,外包一层32mm厚的软木及一层32mm厚的保温材料(85%MgO),管内壁温度120°C,保温材料外表面温度为15°C。(已知铝合金管的热导率l1= 45W·m-1·K-1, 软木热导率l2= 0.043W·m-1·K-1, 保温材料的热导率l3= 0.07 W·m-1·K-1),试求:
【单选题】在101.325 kPa的压力下将蔗糖稀溶液缓慢降温时会析出纯冰。则相对于纯水而言,加入蔗糖将会出现:凝固点( )
A.
降低
B.
升高
C.
不变
D.
无一定变化规律
【单选题】在101.325 kPa的压力下将蔗糖稀溶液缓慢降温时会析出纯冰。则相对于纯水而言,加入蔗糖将会出现:蒸气压( )
A.
升高
B.
降低
C.
不变
D.
无一定变化规律
【单选题】在101.325 kPa的压力下将蔗糖稀溶液缓慢降温时会析出纯冰。则相对于纯水而言,加入蔗糖将会出现凝固点( )
A.
升高
B.
降低
C.
不变
D.
无一定变化规律
【单选题】It is illegal for a public official to ask people for money ____ favors to them.
A.
in preference to
B.
in place of
C.
in agreement with
D.
in exchange for
【单选题】It is illegal for a public official to ask people for gifts or money ________ favors to them.
A.
in addition to
B.
in return for
C.
in revenge for
D.
in search of
【单选题】It is illegal for a public official to ask people for gifts or money_____favours to them. [     ]
A.
in preference to
B.
in exchange for
C.
in place of
D.
in agreement with
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