下面关于下丘脑、垂体、甲状腺3种内分泌腺所分泌的激素之间相互关系的叙述，不正确的是

A．下丘脑分泌的促甲状腺激素释放激素能促进垂体分泌促甲状腺激素

B．垂体分泌的促甲状腺激素能促进甲状腺分泌甲状腺激素

C．甲状腺激素可以抑制下丘脑和垂体的活动

D．促甲状腺激素可以抑制下丘脑和甲状腺的活动

I wonder________there are so many natural disasters across the world in 2010.

A．which it is that

B．what is it that

C．how it is that

D．why it is that