问题
单项选择题
大城市输配管网系统的外环网一般由城市( )燃气管道构成。
A.高压B
B.高压A
C.次高压A
D.次高压B
答案
参考答案:A
大城市输配管网系统的外环网一般由城市( )燃气管道构成。
A.高压B
B.高压A
C.次高压A
D.次高压B
参考答案:A
Miss Wang is twenty-three years 41 . She likes children and her 42 work. From Monday to Friday she stays at 43 and gives the children classes. She has much work 44 , but she often plays sports 45 her students after school. The children like 46 very much. 47 Saturday she drives her car to her father’s house and 48 with her father and mother. Sometimes she goes to see her friends on Sunday. She drives back 49 school on Monday morning. She 50 singing and swimming. She’s a nice girl.
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