皮皮学，免费搜题
登录
搜题
【单选题】
下列描述中,哪一项不属于finally语句应陔执行的功能A.
释放资源
B.
关闭文件
C.
分配资源
D.
关闭数据库
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】A．酸碱法 B．水醇法 C．醇醚法 D．活性炭 E．盐析法 欲纯化总皂苷通常采用的方法是 ( ) 提取生物碱常用的方法是( ) 除去生药中多糖常用的方法是( ) 在溶液中加入无机盐促使有效成分析出的方法是( )
【单选题】Which of the following outcomes is typical of a price ceiling that is set below the market equilibrium price?
A.
Less of the good is produced with the price ceiling than would be produced without it.
B.
The price ceiling has no effect on the market equilibrium.
C.
Consumers can buy more than the market equilibrium quantity because the price ceiling is below the market price.
D.
More of the good is produced with the price ceiling than would be produced without it.
【单选题】A binding price ceiling creates
A.
a shortage
B.
a surplus
C.
an equilibrium
D.
a shortage or surplus depending on whether the price ceiling is set above or below the equilibrium price.
【单选题】If a price ceiling is a binding constraint on the market,
A.
the equilibrium price must be below the price ceiling.
B.
the equilibrium price must be above the price ceiling.
C.
the forces of supply and demand must be in equilibrium.
D.
it will have no effect on supply or demand.
【单选题】有关超声生物显微镜(UBN)的描述,错误的是( )
A.
它是50Hz的高频率分辨率的B超
B.
用于眼前段的疾病辅助诊断
C.
其因穿通力高可用于眼后节疾病辅助诊断
D.
它对闭角型青光眼、恶性青光眼诊断有意义
E.
有利于对眼前段肿瘤诊断
相关题目：
参考解析：
知识点：
题目纠错 0
发布
