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【单选题】
主轴采用带传动变速时,一般常用( )、同步齿形带。A.
三角带
B.
多联 V 带
C.
D.
O 带
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举一反三
【单选题】Usain Bolt________what he will be bringing to the audience as he prepares to defend his title in the London Olympics. [ ]
A.
is well aware of
B.
is well worth
C.
is content with
D.
is satisfied with
【简答题】能够显示当前材质球的材质层次结构的 。
【单选题】The best title for this passage would he ______.
A.
The Importance of Being Visible
B.
Role of Women and Minorities in Management
C.
Job Performance and Advancement
D.
Sex and Career Success
【单选题】David is clever and quick at work, he is honoured with the title of model worker.
A.
which
B.
where
C.
for it
D.
for which
【简答题】能够显示当前材质球的材质层次结构的是
【简答题】根据国标GB/T13531.4-2013 化妆品相对密度的测定，液态化妆品相对密度的测定方法有三种方法，第一法为 ，两次平行试验绝对误差不大于 ；第二法为 ，两次平行试验绝对误差不大于 ；第三法为 ，两次平行试验绝对误差不大于 。A. B. C. D. E. F.
【单选题】The most appropriate title for this selection would he______.
A.
The Development of a Materialistic Society
B.
Science and Technology
C.
Science for Self-Reliance
D.
Natural Resources
【单选题】Usain Bolt ________ what he will be bringing to the audience as he prepares to defend his title in the London Olympics. [ ]
A.
is well aware of
B.
is well worth of
C.
is content with
D.
is satisfied with
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