3. Which of the following flower arrangements could be made acceptable simply by adding a tulip?
(A)Three freesias， one lily， two tulips
(B)Four freesias， two peonies， one tulip
(C)Five freesias， one iris， one tulip
(D)Two irises， two tulips， two zinnias
(E)Two lilies， two peonies， two tulips
4.Which of the following， if added to an unacceptable flower arrangement consisting of four tulips and two freesias， would make the arrangement acceptable?
(A)Four freesias
(B)Four irises
(C)Two lilies
(D)Two peonies
(E)Two zinnias 5.Each of the following is a pair of varieties of flowers that can be used together in an acceptable flower arrangement EXCEPT
(A)freesias and irises
(B)freesias and tulips
(C)irises and lilies
(D)irises and peonies
(E)lilies and zinnias
6.Which of the following unacceptable flower arrange- ments could be made acceptable simply by removing some or all of the flowers of one variety?
(A)Four freesias， one iris， one lily， one peony
(B)Four freesias， one iris， two tulips， one zinnia
(C)Four freesias， two irises， two tulips， one zinnia
(D)Three freesias， one lily， one peony， two zinnias
(E)Three freesias， two peonies， one tulip， two zinnias
7.If an unacceptable flower arrangement consisting of four freesias， one lily， one peony， and two tulips is to be made acceptable by adding or removing only one flower， which of the following must be done?
(A)Add one freesia
(B)Add one iris
(C)Add one zinnia
(D)Remove the peony
(E)Remove one tulip
8.Scientist：More than 1， 000 large asteroids regularly cross the Earth‘s path.Even though the probabil- ity of one colliding with the Earth is extremely slight， we should do whatever we can to reduce that probability since any such collision would be catastrophic.The best way to avoid such a disaster is to deflect the asteroids.The only known way of deflecting asteroids is by hitting them with nuclear weapons that would be stored in space stations.
The scientist‘s claims are structured so as to lead to which of the following conclusions?
(A)Nuclear technology is the only technology that can plausibly be used to prevent natural catastrophes.
(B)Nuclear weapons should be deployed in space.
(C)No catastrophe has yet been caused by the collision of an asteroid with the Earth.
(D)The 1， 000 large asteroids that cross the Earth‘s path pose only an extremely slight risk of colliding with the Earth.
(E)There is currently no acceptable use to which nuclear weapons can be put， aside from pro- tecting the Earth from asteroids.
9.It has long been thought that high levels of the hor- mone testosterone contribute to the onset of heart disease in men.However， this view cannot be correct，since men who have heart disease typically show significantly lower levels of testosterone than do men who have not had heart disease.英语作文
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