激素有产生部位和作用部位。促甲状腺激素释放激素、促甲状腺激素和甲状腺激素的主要作用部位依次是[ ]

A．垂体、甲状腺、全身细胞

B．垂体、全身细胞、全身细胞

C．垂体、全身细胞、甲状腺

D．下丘脑、甲状腺、全身细胞

  It was the long March Rocket 2F, as reported,       sent Shenzhou VI spaceship into space.

A．which

B．what

C．that

D．as