A:溶液pH≤2时,生铁发生析氢腐蚀
B:在酸性溶液中生铁可能发生吸氧腐蚀
C:析氢腐蚀和吸氧腐蚀的速率一样快
D:两溶液中负极反应均为:Fe﹣2e﹣═Fe2+
⑴Lily is on the phone. ____ A.
⑵Jim can carry this bag.____ B.
⑶Be careful!The water is very hot.____ C.
⑷The apples are falling! ____ D.
⑸The plane is flying away.____ E.
当你从阳光灿烂的环境进入黑暗的环境,瞳孔由____变____.
假如你是一位记者,采访了党的十一届三中全会,你的采访报道中不应出现以下哪个观点( )
下列运算正确的( )
The _______pea fell on a roof.( )