下图所示实验操作中，不正确的是

下图所示实验操作中，不正确的是请选择ABCD(?4w.s1E6f5l1p;V-`9b+p(v)x9l.\(Q'z4K1I7^

A．1p;V-`9b+p(v)x9l.\(Q'z4K1I7^

B．1p;V-`9b+p(v)x9l.\(Q'z4K1I7^

C．1p;V-`9b+p(v)x9l.\(Q'z4K1I7^

D．1p;V-`9b+p(v)x9l.\(Q'z4K1I7^