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举一反三
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】机夹刀具有很多特点,但( )不是机夹刀具的特点。
A.
刀具要经常进行重新刃磨
B.
刀片和刀具几何参数和切削参数的规范化，典型化
C.
刀片及刀柄高度的通用化，规则化，系列化
D.
D刀片及刀柄高度的通用化，规则化，系列化