22. lt can be inferred from the passage that Chinese observations of the Sun ! n6 W0 G+ e# z3 b5 y* ?6 W
L9 c' x1 j+ K5 ~" x. Z* c/ ^& \ during the late seventeenth and early eighteenth centuries 3 Q- \) {0 A7 q
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(A) are ambiguous BECause most sunspots cannot be seen with the naked eye + D% H9 z" L! {+ a
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(B) probably were made under the same weather conditions as those made in Europe ; ^1 b, T, a2 _, F$ ]/ Z
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(C) are more reliable than European observations . made during this period
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(D) record some sunspot activity during this period
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1 x/ B4 o* T) @ (E) have been employed by scientists seeking to argue that a change in solar
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/ c8 S, Q+ U9 I! Q! @" H activity occurred during this period.
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/ r5 d& o( k9 P 23. It can be inferred from the passage that studies attempting to use tree-ring
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thickness to locate possi- ble links between solar periodicity and terrestrial ; ]1 p( h1 s5 b* P
: \8 `( L7 C: n climate are based on which of the following assump- tions?
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+ L$ Q n; V2 l# y (A) The solar-activity cycle existed in its present form during the time period
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in which the tree rings erew. " Z0 r4 A- g. s5 [& z/ @
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(B) The biological mechanisms causing tree growth are unaffected by short-term 5 D z* o5 q1 R3 f7 H* ]. d
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weather pat- terns.
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(C) Average tree-ring thickness varies from species to species. t7 @/ \6 g; D8 ^7 K/ l( J
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(D) Tree-ring thicknesses reflecr changes in terres- trial climate. " l8 J d4 _( s7 h: _; t
: K: i: A' g; b (E) Both terrestrial climate and the solar-activity cycle randomly af~ct tree-ring
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thickness.
/ Z& i( R/ R" I) M2 ?/ e
/ d2 N1 F; ? K- Z The common belief of some linguists that each
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language is a perfect vehicle for the thoughts of the
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" v5 t; P; \1 E( Q- Q nation speaking it is in some ways the exact counterpart
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of the conviction of the Manchester school of economics ; j% F0 ]( ~8 G1 R" k3 I
9 E/ H, r* ? I3 k% T5 z that supply and demand will regulate everything for the(5) " p: r. |) M! x
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best. Just as economists were blind to the numerous ' Z4 A6 f$ e: ^/ r- o* v9 r/ ^; j
1 _, K( h5 N) k' {8 F cases in which the law of supply and demand left actual b. B3 c1 q; }1 U& v$ [3 \* B- f0 X
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wants unsatisfied, so also many linguists are deaf to 2 v; F4 R- F9 G3 o9 I: ?! b+ I
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those instances in which the very nature of a ianguage , Y% i) A* |, V0 C B: V$ h: k
$ @$ {9 J( q) G7 T+ T x) q calls forth misunderstandings in everyday conversation,(10) / D7 R/ M' ~& v0 Z
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and in which, consequently, a word has to be modified ( I6 E' q% N+ |% K/ s4 |
5 U- R B! F' A0 y7 a1 h, ~1 E4 W or defined in order to present the idea intended by the
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speaker: "He took his stick,no, not John's, but his
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own." No language is perfec't, and if we admit this truth, , ]! P" ~- V5 q( m$ n% t
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we must also admit that it is not unreasonable to investi-(15)
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- v& X8 Z6 a+ V! V7 ^# n gate the relative merits of different languages or of
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different details in languages. 5 x0 ~& ^2 K& j$ b0 c" c, v$ X3 n
, g: h/ h! `' z1 c1 L9 c$ f( D 24. The primary purpose ofthe passage is to
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' `6 ~' S: v& y; J, j (A) analyze an interesting feature of the English language 3 |0 {: c' _% Q( E, l* _! ]
/ i Q" R4 a8 R0 N8 b4 O (B) refute a belief held by some linguists
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(C) show that economic theory is relevant to linguistic study
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8 L L/ {! @' U% L0 ^& s$ w; z (D) iilustrate the confusion that can result from the improper use of
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language q% w3 a7 t- z# \# ]
0 h5 n( l7 m: i (E) suggest a way in which languages can be made more nearly perfect. |