问题
选择题
My brother is a football fan, he and his friends _____ make a soccer team next year. [ ]
A. is going to
B. are going to
C. be going to
答案
答案：B
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My brother is a football fan, he and his friends _____ make a soccer team next year. [ ]
A. is going to
B. are going to
C. be going to
答案：B
可知，一台在额定转速下工作的水泵，随着其工作流量的减小，比转速ns将（）。