下图是血糖的激素调节示意图,若以“+”“-”分别表示促进和抑制作用,则①②③④⑤⑥依次是
[ ]
A.+,-,+,-,+,-
B.+,+,+,+,-,+
C.-,-,-,+,+,-
D.+,+,+,+,+,+
B.+,+,+,+,-,+
C.-,-,-,+,+,-
D.+,+,+,+,+,+
下图是血糖的激素调节示意图,若以“+”“-”分别表示促进和抑制作用,则①②③④⑤⑥依次是
[ ]
A.+,-,+,-,+,-
B.+,+,+,+,-,+
C.-,-,-,+,+,-
D.+,+,+,+,+,+
B.+,+,+,+,-,+
C.-,-,-,+,+,-
D.+,+,+,+,+,+