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【判断题】
推荐链轮最大齿数Z max ≤120。此限制是为了保证链速的均匀性。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Th e workers are _______ a tall _______. [ ]
A.
build, build
B.
builder, builder
C.
builds, builds
D.
building, building
【简答题】电子现金兼具纸质现金和数字化货币的优势,其特点主要表现 ; ; ; ; 。
【单选题】Where is the train to Nanjing now standing?
A.
At platform. 7．
B.
At platform. 8．
C.
At platform. 9．
【单选题】The museum will open in the spring with an exhibition and a viewing platform ________ visitors can watch the big glasshouses being built. (2013·浙江，13)
A.
what
B.
where
C.
when
D.
why
【单选题】The App WeChat provides a networking platform ______ communication is faster and easier.
A.
which
B.
where
C.
when
D.
why
【简答题】能用于挥发油鉴别的物理常数有( )、( )。
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