皮皮学，免费搜题
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【简答题】
Dayanne : My favorite food is rice and beans. And why do I like rice and beans ? Rice and beans are very healthy for you, but I don’t like them if they are too ________ (hot / salty) or buttery.
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【单选题】下列有关钻斜孔存在的主要问题叙述错误的是 。
A.
钻头开始接触工件时，钻头容易偏斜、滑移而钻不进工件
B.
钻孔中心容易离开所要求的位置，钻出的孔很难保证垂直
C.
孔口完好无损，孔端面平整
D.
钻头容易崩刃或折断
【单选题】I don‘t doubt _____ the stock market will recover from the economic crisis.
A.
if
B.
what
C.
that
D.
which
【简答题】The____['taɪgə] likes water and is good at swimming.
【简答题】A clumsy (heavy, stupid, unskillful) workman is likely to fid fault with his tools.
【简答题】试叙述过电流保护为什么要加装低电压闭锁?什么样的过电流保护加装闭锁?
【简答题】A．heart B．brain C．mind D．liver