高钙血症时可以选择（）
A.水化利尿
B.二膦酸盐
C.皮质激素
D.降钙素
E.血浆置换
参考答案：A, B, C, D
下列物质属于有机物的是（ ）
A．硫氰化铵（NH4SCN）
B．碳酸氢铵（NH4HCO3）
C．尿素（CO（NH2）2）
D．氰酸铵（NH4CNO）
小题1: The dog stopped ▲ at strangers when they ran away. (bark)
小题2:The ▲ people think red, green and white are Christmas colors. (west)
小题3:. Every day the chimneys of ▲ pour a lot of smoke to the air to pollute it. (factory)
小题4: I think you may be ▲ in our new computer games. (interest)
小题5:. I often make chocolate cake by ▲ . (me)
