We have some _____________, but we need some _____________. [ ]

A. tomatos; potatos

B. tomatoes; potatos

C. tomatoes; potatoes

D. tomatos; potatoes

某人成年后，身材矮小，智力低下，很可能是幼年时期下列哪种激素分泌不足所致[ ]

A．胰岛素    

B．甲状腺激素    

C．性激素    

D．生长激素