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【多选题】
燃气管道选用，下列说法正确的是( )。A.
当管子公称尺寸小于或等于DN50，且管道设计压力为低压时，宜采用热镀锌钢 管和镀锌管件
B.
当管子公称尺寸大于DN50时，宜采用无缝钢管或焊接钢管
C.
当采用不锈钢，其厚度不应大于0.6mm
D.
不锈钢管和木锈钢波纹软管用于暗埋形式敷设或穿墙时，应具有外包覆层
E.
当工作压力小于10kPa，且环境温度不高于60℃时，可在户内计量装置后使用燃 气用铝塑复合管及专用管件
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【单选题】In spite of safety considerations, the death rate on interstate highways is still higher than that of other American roads.
A.
Right
B.
Wrong
【单选题】In spite of safety considerations, the death rate on interstate highways is still higher than that of other American roads.
A.
Y
B.
N
C.
NG
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A.
Customer's ability to repay
B.
Purpose of loan
C.
Security available
D.
Amount required
【单选题】What type of reasoning involves weighing considerations for or against making a certain decision?
A.
Rational Adjudication
B.
Inference to the Best Explanation
C.
Common Sense
D.
Balance of considerations
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