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【单选题】
冷却作用最好的切削液是( )。A.
(A)水溶液;
B.
(B)乳化液;
C.
(C)切削油
D.
;(D)防锈剂
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【简答题】请翻译下列句子(核心词power): A car needs a lot of power to go fast. The fourth power of three is eighty-one. Streams and watell are suitable for the development of hydroelectric power.
【单选题】What does the word “power” mean in the sentence “sixteen is the fourth power of two”?
A.
providing the energy that the machine needs in order to work
B.
energy, especially electricity
C.
the ability to do something
D.
it is used in the expression to indicate that two must be multiplied by itself four times
【简答题】The fourth power of two is six.
【简答题】依据1982年《宪法》,我国国家元首是( )。
【多选题】下列对新民主主义社会的说法中正确的是 （ ）
A.
是一种过渡性质的社会阶段
B.
不是一个完整的社会形态
C.
具有两种社会形态的因素
D.
是半殖民地半封建社会走向社会主义社会的中介和桥梁
【单选题】What does the word “power” mean in the sentence “sixteen is the fourth power of two”?
A.
energy, especially electricity
B.
it is used in the expression to indicate that two must be multiplied by itself four times
C.
the ability to do something
D.
providing the energy that the machine needs in order to work
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