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【单选题】
蜗杆因导,齿形深,切削面积大,车削时产生的切削力也大,因此车多头蜗杆不得采用( )装夹。A.
三爪自定心卡盘
B.
一夹一顶
C.
两顶尖
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举一反三
【单选题】An idea suddenly came to J.K.Rolling ________ she could write a book about people living in the magic world
A.
if
B.
when
C.
that
D.
which
【单选题】Buoys are marked with reflective material to assist in their detection by searchlight.Which statement is TRUE ().
A.
A safe-water buoy will display red and white vertical stripes of reflective material
B.
All reflective material is white because it is the most visible at night
C.
A special-purpose mark will display either red or green reflective material to agree with its shape
D.
A preferred-channel buoy displays either red or green reflective material to agree with the top band of color
【单选题】Which one is typical characterize of successful reflective responding? _____________.
A.
a greater emphasis on speaking than listening.
B.
following the other rather than leading him or her into areas that the listener thinks should be explored.
C.
responding to abstract rather than personal points.
D.
All of the above are characteristics of reflective responding.
【单选题】Successful reflective responding can be characterized by
A.
a greater emphasis on speaking than listening.
B.
responding to abstract rather than personal points.
C.
following the other rather than leading him or her into areas that the listener thinks should be explored.
D.
suggesting or questioning what the speaker should be thinking or feeling.
E.
All of the above are characteristics of reflective responding.
【简答题】试对如下程序段进行优化。 I=1 j=10 rend k L:x=k*I y=j*I z=x*y write j I=I+1 if(I＜100) goto L halt
【单选题】According to Bartlett， reflective teaching includes five stages， that is， mapping， informing and three other stages EXCEII'
A.
monitoring
B.
contesting
C.
appraisal
D.
acting
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