If Q and W are standing on N’s shoulders and M falls, which of the following
% K) P& c( I2 B/ ]sets of acrobats could be left standing after all the acrobats who must fall as
8 k; o/ ?. r& Xa result of M’s fall have fallen? 2 T7 H; I0 i: r8 N. U9 R
N, O, P, Q, V, and W z& L0 U8 C2 u! `
N, O, P, V, X, and Y 2 ?+ b8 |$ z3 f5 m3 z+ w
N, P, V, W, X, and Y
0 \5 ?/ q" V, b7 I$ J7 P* d O, P, Q, V, X, and Y
. E- q3 ?9 z5 P2 \ O, P, Q, W, X, and Y # y# A% f1 Q. N( V) _9 D1 V7 o! W1 y
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答案:(A)
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If V and W stand of different levels, and X and Z stand on the same level,
/ y% i9 m# R1 E2 d) g- ywhich of the following is a complete and accurate list of the levels on which
8 [: m& j a5 j, ~8 e/ BY could possibly stand?
0 z' I/ ~$ n3 `( v- L: i Second 5 [7 g" o' V+ z) W. i4 `7 k
Third
3 O9 i- ~1 w! Q) e" s& O6 D Fourth
$ c4 ^; U4 L) Z6 o$ h8 E6 b Second, third
7 c# \. ?, m9 m g Third, fourth a4 N$ ]* N: k( {' |
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/ t8 Z6 p2 l( A; _答案:(D) 9 M) _; J& [4 }$ q S6 l# r
5 z8 @5 O A/ b$ E' p# J* i% `If V and W stand on O’s shoulders, and M stands on the same level as N and
3 i1 `/ m- L8 X# V1 RP and is the only acrobat between them, which of the following must be true? 0 T3 q" ~3 D, p+ K
If M falls, all five of the child acrobats must fall. : C& B; G2 h) r1 ]
If N falls, exactly four of the child acrobats must fall. $ q- c E F; @. D: l* d! b
If O falls, exactly two of the child acrobats must fall. 5 \# ]6 E! \& p% h2 v. j
If P falls, exactly three of the child acrobats must fall.
0 W8 l: x w/ r' J- j9 D9 b& o If Q falls, exactly three of the child acrobats must fall.
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答案:(E)
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/ w2 N+ Z2 Y( v7 s; vIf W stands on V’s shoulder, and V stands on M’s shoulder, which of the + v9 O/ T' {) W+ [( t- w" |! ]
following CANNOT be true? + }0 v6 F( s6 m4 v, c0 x
N and V stand side by side on the same level. ' i) ], S: p/ p+ i
W and X stand side by side on the same level.
/ K- H6 a5 J# c& E/ T( l X and Y stand side by side on the same level.
8 b5 {: s5 L, q& _! R M stands on the same level as N and P and is the only acrobat between them
6 z; j- X6 I0 Z+ s. k1 q M stands on the same level as Y and Z and is the only acrobat between them. ! f1 [6 Z: Y A' H" }4 u% J4 U
9 u- U0 L8 L7 t2 [- C
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: m, l! x9 q4 @* U( H* u; l答案:(C) |