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寂寞泪阑干，梨花一枝春带雨。 阑干：
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【单选题】Who cannot sit in the House of Lords?
A.
Archbishops of Canterbury and York
B.
senior bishops of Church of England
C.
all the hereditary peers and peeresses
D.
life peers
【单选题】在换热器中,间壁任一侧的对流传热速率 = 推动力 / 阻力,其中推动力是指
A.
两相流体温度差（ T – T ˊ） ;
B.
冷流体进出口温度差（ T 2 ˊ -T 1 ˊ ） ;
C.
热流体进出口温度差（ T 2 -T 1 ） ;
D.
流体主体温度和管壁温度差（ T – T W ）或（ T W ˊ – T ˊ）
【单选题】在换热器中,间壁一侧的对流传热速率 = 推动力 / 阻力,其中推动力是指( )。
A.
同除以流体的密度
B.
同乘以重力加速度
C.
同乘以流体的密度
D.
同除以重力加速度
【单选题】Why did the author want to conceal the fact that he had seen the present?
A.
Because he did not think the present wonderful
B.
Because he didn’t want his sister to know that only he would have such a present
C.
Because he was not sure whether the present was for him
D.
Because he didn’t want to strike a blow against her mother’s happiness
【简答题】A．They cannot sit still or control their actions. B．They cannot talk fluently. C．They cannot study well. D．They cannot express their ideas well.
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