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【单选题】
用联合成型磨削法加工电极,当凸,凹模的配合间隙大于放电间隙时,电极的轮廓尺寸( )凸模的轮廓尺寸。A.
等于
B.
大于
C.
小于
D.
都可以
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举一反三
【单选题】硬水和软水的本质区别是
A.
硬水浑浊、软水澄清
B.
硬水含有杂质、软水含杂质少
C.
硬水是不纯净水，软水是纯净水
D.
硬水含有较多可溶性钙镁化合物、软水不含或含少量可溶性钙镁化合物
【简答题】All employees are given a yearly ______，which decides whether or not their contracts will be renewed for the coming year． 所有的雇员每年都会被评估，根据评估结果来决定是否续签下一年的合同。
【单选题】Questions and exercises are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level.
A.
either, or
B.
both, and .
C.
whether, or
D.
not only, but also
【单选题】I don’t like ____ you speak to her. A. the way B. the way in that C. the way which D. the way of which
A.
the way
B.
the way in that
C.
the way which
D.
the way of which
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