【判断题】在精密夹具装配的过程中,将便于拆装的零件作为补偿环,有利于简化装配工艺。
【单选题】It is said that the agreement ______ between the two companies last month will become effective from May 1st.
【单选题】The main topic of the passage is ______.
A.
laughter and physical exercise have similar effects on the human body
B.
smile can produce the same effects as laughter
C.
pain can be reduced by laughter
D.
laughter is the best medicine
【简答题】有效的,生效的 effe_______ adj.
【简答题】在双本位制下,当黄金与白银的法定比价与市场价格不一致时,市场价格高于法定比价的金属货币在流通中的数量会逐渐减少,而市场价格低于法定比价的金属货币在流通中的数量会不断增加,这就是劣币驱逐良币的现象,是由16世国财政家汤姆斯.格雷欣首先提出的,故被称为 。A. 格雷欣法则
【单选题】在金银复本位制中,如果金银的官方比价是1:5,市场比价是1:7,根据格雷欣法则,( )是劣币,( )是良币,( )退出流通领域。