降糖激素为（）
A.生长素
B.甲状腺素
C.胰岛素
D.肾上腺素
E.胰高血糖素
参考答案：C
日本血吸虫雌虫产卵的部位是（）.
A.肠系膜静脉末梢
B.肝内门静脉
C.肠系膜静脉近端
D.肠壁
He ________the shop while the manager was away.[ ]
A. was left in charge of
B. left in charge of
C. was left in the charge of
D. left in the charge of
