I am . I want some water to drink. [ ]
A. happy
B. thirsty
C. hungry
答案：B
My wife has three brothers, all are ___ than she.____ George is an officer.
A．elder, The eldest
B．old, The eldest
C．elder, The old one
D．older, The eldest
下列溶液可以盛放在玻璃试剂瓶中但不能用磨口玻璃塞的是（ ）
A．稀盐酸
B．氰氟酸
C．氢氧化钠溶液
D．氯化钠溶液
