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【单选题】
下列关于各种换热器的说法错误的是哪一项( )A.
管壳式换热器具有材料消耗小,紧凑等优点
B.
板式换热器传热系数高,金属消耗量小,拆洗方面等特点
C.
板翅式换热器两侧片,经常用气—气的热量交换
D.
螺旋板换热器中,螺旋通道有利于提高传热系数,冲刷效果好,结垢速度小
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举一反三
【多选题】下列对秋收起义的认识正确的有( )
A.
是发动群众武装反抗国民党统治的正确抉择
B.
进攻长沙是在“八七会议”“左”倾情绪影响下的决定
C.
是由毛泽东领导的
D.
三湾改编是中国共产党创建革命军队的开端
【单选题】According to the passage, the case of the Penan foragers' cultivation of the sago palm fails to indicate that
A.
a co-evolutionary argument is unnecessary to establishing that rain-forest adaptation is the effect of human intervention
B.
plant-species inimical to carbohydrate-rich species would continue to thrive without the practices of foraging peoples
C.
the 'thinning' effect produced by the Penan's foraging practice is responsible for the sago palm's long-term survival
D.
the Penan have justification for abandoning the exploitation of sago palms or relocating to more carbohydrate-rich areas
E.
rain forests may evolve as a result of the quantity and availability of extant carbohydrate-rich species
【多选题】下列对秋收起义的认识正确的有( )
A.
三湾改编是中国共产党创建革命军队的开端
B.
文家市会议迈出了到农村建立革命根据地的第一步
C.
是发动群众武装反抗国民党统治的正确抉择
D.
进攻长沙是在“八七会议”“左”倾情绪影响下的决定
【单选题】执行完如下语句后,Sum的值为: Dim a(5),Sum Sum=0 For I=0 To 5 a(I)=I Sum=Sum+a(I) Next %>
A.
0
B.
5
C.
15
D.
20
【单选题】Which of the following is true according to the text?
A.
The British value the notion of fairness, especially in sports games.
B.
Continental European politicians don't favor the notion of fairness.
C.
Fairness is vital for maidens since it has no gender discrimination.
D.
Fairness has become a guidelines of Britain's coalition government.
【单选题】执行完如下语句后, Sum 的值为( ) 。 Dim a(5),Sum Sum=0 For I=0 To 5 a(I)=I Sum=Sum+a(I) Next %>
A.
20
B.
15
C.
10
D.
5
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