According to Allen, why did the people do better with pets around when l~cing stressful tasks?
A．They have lower blood pressure.
B．They become more patient.
C．They are less nervous.
D．They are in higher spirits.
27_________
A. sick
B. nervous
C. angry
D. afraid
Some people eat with their eyes. They prefer to order what _____ nice.
A. looks
B. smells
C. feels
D. tastes
Theunderlinedsentenceinthelastparagraphprobablymeansthat______.
A.theproblemisnotapproachedstepbystep
B.theresearchessofarhavefaultsinthemselves
C.theproblemistoodifficultforresearcherstodetect
D.researchinthisareaisnotenoughtomakegeneralizedpatterns
43 A daughter B wife C mother D sister
A wheelchair user may need help to enter ．
A．the House
B．the garden
C．the Visitors’Centne
D．the exhibition hall