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【简答题】
信号装置一般分为信号机和（ ）两类 A. 信号表示器
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皮皮学刷刷变学霸
举一反三
【简答题】A．imperative B．desire C．requirement D．necessity
【简答题】简述公共财政的概念，公共财政具有哪些基本特征。
【单选题】The price , but I doubt whether it will remain so.
A.
went down
B.
will go down
C.
has gone down
【单选题】Since then , however, I have learned nothing and I _________ to wonder if my application _____astray.
A.
began...went
B.
begin...was going
C.
am beginning...has gone
D.
have begun...went
【简答题】A．advantage B．distinction C．deficiency D．necessity
【简答题】According to the passage，which of the following is a necessity?
【简答题】A. However B. Since C. Then D. Although