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【单选题】
用120°C的饱和水蒸气加热常温空气。蒸汽的冷凝膜系数约为2000W/(m 2 ·K),空气的膜系数约为60W/(m 2 ·K),其过程的传热系数K及传热面壁温接近于A.
2000W／(m 2 ·K)，120℃
B.
2000W／(m 2 ·K)，40℃
C.
60W／(m 2 ·K)，120℃
D.
60W／(m 2 ·K)，40℃
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【简答题】容器设计压力( )最大工作压力
【简答题】A．New designs are being adopted. B．Advertisements are being widely used. C．New technology is being employed. D．More synthetic materials are being introduced.
【判断题】RAW图像是未经显像的拍摄图像，它是一种潜像，需要对图像进行图像信号的处理，赋予它显像的条件，这种处理叫做显像，佳能的EOSDIGITAL系列相机拍摄的RAW图像，可以通过DPP来处理。
A.
正确
B.
错误
【简答题】Edman降解法测定氨基酸序列的试剂是( )。 A．DNP B．DNS C．PITC D．CNBr
【单选题】The international competition for new designs of World Trade Center ______.
A.
satisfied the public with the LMDC efforts and won itself a cheer
B.
has failed to attract any first-class designers so far
C.
was extremely fierce among designers around the globe
D.
brought great hope that the city could emerge from September 11
【单选题】The new designs of the Christmas stamps are always waited for with keen ______.
A.
irritation
B.
prediction
C.
reception
D.
anticipation
【简答题】The new designs should offer even greater security to cities where ____________(地震频繁发生).
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