[問題] 天山7- Q35

[SugarChunda]

Until recently, zoologists believed that
all species of phocids (true seals), a pinniped
family, use a different maternal
Line strategy than do otariids (fur seals and
(5) sea lions), another pinniped family. Mother
otariids use a foraging strategy. They
acquire moderate energy stores in the
form of blubber before arriving at breeding
sites and then fast for 5 to 11 days after
(10) birth. Throughout the rest of the lactation
(milk production) period, which lasts from
4 months to 3 years depending on the
species, mother otariids alternately forage
at sea, where they replenish their fat
(15) stores, and nurse their young at breeding
sites. Zoologists had assumed that
females of all phocid species, by contrast,
use a fasting strategy in which mother
phocids, having accumulated large energy
(20) stores before they arrive at breeding sites,
fast throughout the entire lactation period,
which lasts from 4 to 50 days depending on
species. However, recent studies on
harbor seals, a phocid species, found that
(25) lactating females commenced foraging
approximately 6 days after giving birth and
on average made 7 foraging trips duringthe remainder
of their 24-day lactation period.
(30) The maternal strategy evolved by
harbor seals may have to do with their
small size and the large proportion of their
fat stores depleted in lactation. Harbor
seals are small compared with other phocid
(35) species such as grey seals, northern elephant
seals, and hooded seals, all of which
are known to fast for the entire lactation
period. Studies show that mother seals of
these species use respectively 84 percent,
(40) 58 percent, and 33 percent of their fat
stores during lactation. By comparison,
harbor seals use 80 percent of their fat
stores in just the first 19 days of lactation,
even though they occasionally feed during
(45) this period. Since such a large proportion
of their fat stores is exhausted despite
feeding, mother harbor seals clearly cannot
support all of lactation using only energy
stored before giving birth. Though smaller
(50) than many other phocids, harbor seals are
similar in size to most otariids. In addition,
there is already some evidence suggesting
that the ringed seal, a phocid species that
is similar in size to the harbor seal, may
also use a maternal foraging strategy.
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Q35:
According to the passage, until recently zoologists believed which of the following about all phocid mothers?
A. Their fasting periods after giving birth were typically shorter
than those of otariids.
B. Their lactation periods were generally as long as those of
comparably sized otariids.
C. They acquired only moderate energy stores in the form of
blubber before arriving at breeding sites.
D. They depleted less than a third of their stored body fat
during lactation.
E. The replenished their fat stores only after their lactation
period ended.
ANS.: E
想請問各位高手, 雖然E選項也正確, 但答案為何不選A ? A選項的敘述也是很明確出現過的ㄚ !

[CUGGYER]

I have figured out why A is a wrong option.

otariids fasting periods after brith 5~11line9
and then fast for 5 to 11 days after
birth
phocid fasting periods after brith 4~50line21-22
fast throughout the entire lactation period,
which lasts from 4 to 50 days

this is difficult to compare the fasting period between otariids and phocid

[SugarChunda]

哇 !! 過了這麼久還有人看到我的問題, 真開心 ! 謝謝CUGGYER, 你說的是對的, 再仔細看一下文章果然就知道了 !!