E |
I |
3 |
0.04 |
L1 |
R1 |
x |
R1′ |
10 |
300 |
x |
45 |
L1 |
R1 |
E |
I |
L1 |
R1 |
E |
I |
A.x′1+x1=x2+x′2 | B.x′1+x1<x2+x′2 |
C.x′1+x′2=x1+x2 | D.x′1+x′2<x1+x2 |
A.1:1:1 | B.1:2:3 | C.1:2:1 | D.无法确定 |
A.F′=2F | B.x′=2x | C.F′>2F | D.x′<2x |
A.20N | B.80N | C.100N | D.2000N |
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