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【简答题】
工作既支承回转零件又传递动力、同时承受弯曲和转两种作用的轴是_________。
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反馈参考答案：
举一反三
【单选题】It was over a decade _______ they paid off all their debt. You can imagine what a hard life they had. [ ]
A.
before
B.
until
C.
after
D.
while
【单选题】You can imagine what great trouble we had ______ the new school.
A.
setting up
B.
to set up
C.
set up
D.
to setting up
【单选题】It was over a decade _______ they paid off all their debt. You can imagine what a hard life they had. [ ]
A.
until
B.
before
C.
after
D.
while
【单选题】You can imagine what great tuouble we had_____ the school for the blind.
A.
setting up
B.
to set up
C.
set up
D.
to setting up
【单选题】My spoken English was poor and you can imagine what great difficulty I had ______ myself understood.
A.
make
B.
to make
C.
made
D.
making
【简答题】亲子活动区、儿童游乐场、拓展基地应规划在农庄靠 面的位置。
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