皮皮学，免费搜题
登录
搜题
【单选题】
(单选题)使用Item Loaders对Item数据进行提取和解析(整理)作用( )A.
数据的提取和解析混合在一起
B.
数据的提取和解析分离
C.
数据的提取和解析混淆
D.
以上都不是
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】铜板上铁铆钉处的吸氧腐蚀原理如图所示，下列有关说法中，不正确的是( )
A.
此过程中铜并不被腐蚀
B.
此过程中电子从Fe移向Cu
C.
正极反应式为：2H ＋ ＋2e － =H 2 ↑
D.
此过程中还涉及反应：4Fe(OH) 2 ＋2H 2 O＋O 2 =4Fe(OH) 3
【单选题】A crew list is a piece of paper which shows ______.
A.
all names of crew members on board
B.
all crew member's lists on board
C.
all paper of crew members on board
D.
all names of lists for the crew on board
【单选题】铜板上铁铆钉处的吸氧腐蚀,下列有关说法正确的是( )。
A.
正极电极反应式为： ↑
B.
此过程中还涉及到反应：
C.
此过程中Fe、Cu均被腐蚀
D.
此过程中电流从Fe移向Cu
【单选题】Authority gradient is an important factor that can have an effect on communication in a multi-crew environment. In a flight crew, an apt arranging is( )
A.
the captain's power, ability, longevity and status are higher much more than the other members of the flight crew.
B.
the captain's power, ability, longevity and status are equal to the other members of the flight crew.
C.
the captain's power, ability, longevity and status is higher than the other members of the flight crew in some short
【单选题】A crew member is unconscious and the face is flushed. You should ______.
A.
lay the crew member down with the head and shoulders slightly raised
B.
administer a liquid stimulant
C.
lay the crew member down with the head lower than the feet
D.
attempt to stand the crew member upright to restore consciousness
【单选题】铜板上铁铆钉处的吸氧腐蚀原理如图所示，下列有关说法中，正确的是（ ）
A.
此过程中铜被腐蚀
B.
此过程中电子从Fe移向Cu
C.
正极电极反应式为：2H + +2e - ═H 2 ↑
D.
铁钉表面发生的反应为Fe-3e - ═Fe 3+
【简答题】A．They would help the crew to get out of the desert. B．They would help the crew to have radio contact. C．They would help people to identify them. D．They would help the engineers to know what had befal...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
