皮皮学，免费搜题
登录
搜题
【多选题】
地球表面的重力分布情况( )A.
地球表面的重力自赤道向两极逐渐增大
B.
地球自转的惯性离心力自赤道向两极递减
C.
地面引力自赤道向两极递增
D.
南北纬45°海平面的重力是全球的平均值
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What is reported about the crew of the ship?
A.
the captain was injured
B.
the chief engineer was injured
C.
all the crew were kidnapped
D.
six of the crew were kidnapped
【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
【多选题】铜板上铁铆钉处的吸氧腐蚀原理如图所示，下列有关说法正确的是 [ ]
A.
正极的电极反应式为：2H + +2e - =H 2 ↑
B.
此过程中还涉及反应：4Fe(OH) 2 +2H 2 O+O 2 =4Fe(OH) 3
C.
此过程中Fe、Cu均被腐蚀
D.
此过程中电流从Cu流向Fe
【单选题】铜板上铁铆钉处的吸氧腐蚀原理如右图所示， 下列有关说法正确的是
A.
正极电极反应式为：2H + +2e - =H 2 ↑
B.
此过程中还涉及到反应：4Fe(OH) 2 +2H 2 O+O 2 =4Fe(OH) 3
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
相关题目：