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GRE网络课堂学习笔记-逻辑[8]

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2. Questions 12-19 A housing committee will consist of exactly five representatives, one of whom will be its chairperson. The representatives will be selected from among a group of five tenants--F, G, J, K, and M--and a group of four homeowners--P, Q, R, and S. The following conditions must be met:The committee must include at least tow representatives from each group.The chairperson must be a representative belonging to the group from which exactly two representatives are selected.If F is selected, Q must be selected.If G is selected, K must be selected.If either J or M is selected, the other must also be selected.M and P cannot both be selected.(12). Which one of the following is an acceptable selection of representatives for the committee?(A) F, G, Q, R, S(B) F, J, K, P, Q(C) F, P, Q, R, S(D) J, K, M, Q, S(E) J, M, P, Q, S  (13). Which one of the following lists three representatives who could be selected together for the committee? (A) F, G, J (B) F, G, M (C) F, J, M (D) G, J, K(E) G, J, M (14). If M is the chairperson of the committee, which one of the following is among the people who must also be on the committee?(A) F(B) G(C) K(D) P(E) R(15). If F is the chairperson of the committee, which one of the following is among the people who must also be on the committee?(A) G(B) K(C) P(D) R(E) S(16). If F is selected, any one of the following people could be the chairperson of the committee EXCEPT:(A) G(B) K(C) P(D) Q(E) S(17). If neither F nor K is selected for the committee, which one of the following can be true?(A) G is selected.(B) P is selected.(C) J is the chairperson.(D) Q is the chairperson.(E) S is the chairperson.(18). If the chairperson of the committee is to be a homeowner, which one of the following must be true?(A) If G is selected, Q is also selected.(B) If G is selected, R is also selected.(C) If J is selected, F is also selected.(D) If J is selected, Q is also selected.(E) If J is selected, R is also selected.(19). The committee must include at least one representative from which one of the following pairs?(A) F, P(B) G, J(C) K, Q(D) M, P(E) R, SKEYS: DCEBACAC

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