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【单选题】
根据NB/T47014-2011《承压设备焊接工艺评定》的规定，板材对接焊缝试件评定合格的焊接工艺（）管状焊件的对接焊缝。A.
不适用于
B.
适用于
C.
适用于直径大于等于76mm
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【简答题】继电保护的基本要求?
【单选题】She ______ by finding me a specially trained dog, which actually ______. [ ]
A.
helped me; cheered me
B.
helped me out; cheered me up
C.
helped me up; cheered me up
D.
helped me out; cheered me out
【简答题】对继电保护的基本要求？
【简答题】根据对继电保护的基本要求试分析供电线路过电流保护和电流速断保护有哪些相同之处?有哪些不同之处?
【单选题】听力原文：The medicine the doctor gave me seemed to have helped, but it's making me awfully drowsy. What's wrong with the medicine the doctor gave me?
A.
The medicine doesn't work.
B.
The medicine has nothing wrong.
C.
The medicine makes me sleepy.
【简答题】单糖与浓硫酸脱水生成 ,后者皆能与 化合物产生有色物质,用来鉴别几种糖类。
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