A:kπ−π12,kπ+5π12(k∈z)
B:kπ+5π12,kπ+11π12(k∈z)
C:kπ−5π24,kπ+7π24(k∈z)
D:kπ+7π24,kπ+19π24(k∈z)
实验探究题
下列腺体:①肠腺、胃腺,②肾上腺垂体,③甲状腺、胸腺,④、卵巢、睾丸,⑤汗腺、唾液腺,⑥胰岛、胰腺,⑦肝脏、泪腺中,属于内分泌腺的是( )
He spent every Sunday evening the piano in an old people's home.