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【多选题】
在平面行星轮系中，由于轮系中行星轮的（ ）不固定，其传动比不能直接用轮系传动比的计算公式来计算。可应用（ ），即根据相对运动的原理，假想对整个行星轮系加上一个绕主轴线O-O转动的公共转速-nH。A.
轴线
B.
转化轮系法
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【简答题】设有变量定义: int x=2,y=4,z=7 ;写出下列表达式的值以及表达式计算后 x 、 y 、 z 的值。 ( 1 ) z%=x ( 2 ) x/=3 ( 3 )( ++x ) + ( y-- ) ( 4 ) x+y>++z ( 5 ) x=y=z ( 6 ) y!=z ( 7 ) ( x--
【单选题】Do you know insurance(保险)? Buying insurance is a (56) by which people can protect themselves (57) large losses. Protection against fire is one kind of insurance. Large numbers of people pay (58) sums ...
A.
idea
B.
sole
C.
thought
D.
means
【单选题】Do you know insurance(保险) ? Buying insurance is a【56】by which people can protect themselves【57】large losses. Protection against fire is one kind of insurance. Large numbers of people pay【58】sums of mo...
A.
idea
B.
sole
C.
thought
D.
means
【单选题】Read the following introductory paragraph and decide the method it used. Life insurance may be defined as a plan under which large groups of individuals can equalize the burden of loss from death by d...
A.
Present a definition
B.
Present an anecdote
C.
Present an important or famous people ’ s saying
D.
Present figures or statistics
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【简答题】设有变量定义: int x=2,y=4,z=7 ;写出下列表达式的值以及表达式计算后 x 、 y 、 z 的值。 ( 1 ) z%=x ( 2 ) x/=3 ( 3 )( ++x ) + ( y-- ) ( 4 ) x+y>++z ( 5 ) x=y=z ( 6 ) y!=z ( 7 ) ( x--
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