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【多选题】
底部供气透气砖型分为（）。
A.
环缝管式
B.
弥散型
C.
砖缝组合型
D.
直孔型（定向）
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举报参考答案：
举一反三
【单选题】Surtsey was born in 1963. Scientists saw the birth of this island. It began at 7:30 a.m. on 14th November. A fishing boat was near Iceland. The boat moved under the captain’s(船长) feet. He noticed a st...
A.
d-a-c-b-e
B.
C.
B．a-b-c-d-e
D.
C．a-b-e-c-d
E.
F.
D．b-e-d-a-c
【单选题】From the waterline to the ship’s（）(底部) is called draft.
A.
top
B.
bridge
C.
bottom
D.
middle
相关题目：
【单选题】Surtsey was born in 1963. Scientists saw the birth of this island. It began at 7:30 a.m. on 14th November. A fishing boat was near Iceland. The boat moved under the captain’s(船长) feet. He noticed a st...
A.
d-a-c-b-e
B.
C.
B．a-b-c-d-e
D.
C．a-b-e-c-d
E.
F.
D．b-e-d-a-c
【单选题】From the waterline to the ship’s（）(底部) is called draft.
A.
top
B.
bridge
C.
bottom
D.
middle
参考解析：
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