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更多“-is this-It's a pencil box（）”相关的问题
第4题
费托合成反应器内空塔气速正常操作指标为（)。
A.0.10m/s~0.20m/s
B.0.15m/s~0.35m/s
C.0.10m/s~0.35m/s
D.0.15m/s~0.25m/s
第7题
A．He's the woman's friend.B．He's a visitor.C．He's a new employee.D．He's the boss.
A．He's the woman's friend.
B．He's a visitor.
C．He's a new employee.
D．He's the boss.
