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【判断题】
基准可分为设计基准和工艺基准，工艺基准又分为定位基准、测量基准和装配基准。( )A.
正确
B.
错误
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举一反三
【单选题】While he was seeking for ways to improve the telescope, Newton made _____ discovery which completely changed _____ man's understanding of colour. [ ]
A.
a; the
B.
the; a
C.
a; /
D.
/; the
【单选题】While he was investigating ways to improve the telescope, Newton made discovery which completely changed man's understanding of color. [ ]
A.
a; /
B.
a; the
C.
/; the
D.
the; a
【简答题】A．She can't afford to play for four hours a day. B．She finds it easy to improve her English. C．She is rejecting the man's advice. D．She will spare no efforts to improve her English.
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