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【单选题】
某平壁燃烧炉由一层200 mm厚的耐火砖和一层100 mm厚的绝缘砖砌成,炉的内表面温度为1000°C,外表面温度为100°C,耐火砖和绝缘砖的平均导热系数分别为0.8W /(m.°C)和0.2W/(m.°C),则导热的热通量为( ) W/m2.A.
600
B.
1200
C.
2400
D.
4000
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【简答题】Edward Green is
【简答题】EDWARD GREEN : Hello . Pleased to meet you . JENNY ROSS : ___________4__________. EDWARD GREEN : Thank you .
【单选题】She can't _____ us because her mother is ill. [ ]
A.
joining
B.
Joined
C.
join
D.
to join
【单选题】—What color is it? —_________. [ ]
A.
It's a green car
B.
It's a green
C.
It's green
D.
It's green car
【简答题】EDWARD GREEN: Can they be larger? PHIL WATSON: Yes. Like this. It looks good like that. EDWARD GREEN: Excellent. It' s very clear. It' s easy to read. ________________
【简答题】What do you think? EDWARD GREEN: _____________, but I don' t like the copy. PHIL WATSON: Why not? EDWARD GREEN: It' s not exciting. It doesn' t sell the product.
【单选题】According to the passage, what is the beginning of 'with us' era?
A.
The invention of the first Compaq.
B.
The use of desktop PCs.
C.
The launch of iPhone.
D.
The use of Watson computing.
【简答题】GERALDINE : Hello . Jenny , _______2_______. Please , sit down . EDWARD GREEN : Thank you . JENNY ROSS : Are you Edward Green ? EDWARD GREEN : Yes .
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