问题
单项选择题
某一立式冷凝器,其进出口水温分别为20℃和25℃,则其冷凝温度可确定为______℃。
A.26.5
B.25.5
C.28.5
D.30.5
答案
参考答案:C
某一立式冷凝器,其进出口水温分别为20℃和25℃,则其冷凝温度可确定为______℃。
A.26.5
B.25.5
C.28.5
D.30.5
参考答案:C
完形填空。 I have a new classmate, Danny. He 1 from Canada. Canada is a beautiful 2 . It is east of China. Ottawa is 3 capital city. People in Canada 4 English and French. The 5 of the flag is red and white. It has a red 6 on it. Danny's mother and father are 7 . They teach (教) English in the same school in Beijing. They can speak Chinese well. Danny 8 the Bird's Nest (鸟巢) and the Water Cube (水立方) very much. Danny wants to learn Chinese history (历史), because he wants to know more 9 China. The Great Wall is very 10 in the world. Danny and his parents want to visit it this weekend. | ||||
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