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【简答题】
.行星齿轮机构的三个基本元件是 、行星轮、行星架及齿圈。
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反馈参考答案：
举一反三
【单选题】Smith sold (most of) his (belongings). He has hardly (nothing) left (in) the house.
A.
most of
B.
belongings
C.
nothing
D.
in
【简答题】For most of the day construction worker Sidney Smith and his brother – in – law Joseph Chambers had been 21 along the banks of Lake Waco with little 22 . Chambers suggested they go home, but Smith ___...
【简答题】4 You are an audit manager in Smith & Co, a firm of Chartered Certified Accountants. You have recently been made responsible for reviewing invoices raised to s and for monitoring your firm’s cre...
【简答题】党的工作重心由乡村转移到城市的决策是党的 ( ) 会议做出的。
【多选题】对于变量f(t)=f(∞)+(f(0+ )-f(∞)) e^(-t/Ʈ)中描述正确的是＿＿。
A.
f(0_+ )为电路变量的初始值
B.
f(∞)为电路变量的稳态值
C.
τ为电路时间常数，τ=R⁄C或τ=R⁄L
D.
τ越大，响应速度越快
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