噻嘧啶：可使虫体肌肉痉挛性麻痹，（）作用。
参考答案：广谱驱虫
He ___ his students’ respect after working with them for 3 years.
A．received
B．won
C．accepted
D．took
胰岛A细胞可分泌（）
A.胰高血糖素
B.血管升压素
C.降钙素
D.胰岛素
E.生长抑素
