美化天线与普通基站天线在电性能上是完全一致的，但是更起到了天线设备（）的作用。
参考答案：隐蔽（隐藏）
A．Because she hadn’t heard of the writer at the time.
B．Because it wasn’t on any of the professors’ reading lists.
C．Because it was published after she had finished her research.
D．Because it was only available in French.
维持担保比例超过( )时，客户可以提取保证金可用余额中的现金或充抵保证金的有价证券。
A．100%B．200%C．300%D．400%
