Our school is ___ one in Beijing.
A. beautiful
B.more beautiful
C. most beautiful
D. the most beautiful
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Tom is one of ___ in the football team.
A. tall boy
B. tallest boys
C. tallest boy
D. the tallest boys
Li Ming is ___ student in the class.
A. Tall
B. the taller
C. the tallest
D. Tallest
Mike is ___ Tom.
A. healthy than
B. healthier as
C. so healthy as
D. as healthy as
属于压力控制阀的是()。
A. 节流阀
B. 电磁换向阀
C. 溢流阀
D. 单向阀