海豹 JJ 确认

According to the passage,
until recently zoologists believed which of the following about all phocids
mothers?

不明白为什么选E。E的内容在文章中根本就没有提到过呀。

1. Their
        fasting periods after giving birth were typically shorter than those of
        otariids.
2. Their lactation periods were generally as long as those
        of comparably sized otariids.
3. They acquired only moderate energy stores in the form
        of blubber before arriving at breeding sites.
4. They depleted less than a third of their stored body
        fat during lactation.
5. The replenished their fat stores only after their
        lactation period ended.

旧观点：(Zoologists had assumed that   females of all phocids species,
                by contrast,   use a fasting strategy in which mother   phocids…… )动物学家认为所有的P型海豹在泌乳期内是禁食的。

fasting strategy意为“禁食策略”，E的意思P只在禁食期结束后才补充能量储备，原文换种说法而已。

原文说，O型海豹禁食5-11天，P型海豹禁食4-50天，A的意思是P的禁食时间短于O，正好和原文意思相反。

希望对你有帮助。

晕,选E啊,难怪我作文不好，原来中文表达都有同学看不懂

adverb

In an expected or customary manner; for the most part: commonly, consistently, customarily, frequently, generally, habitually, naturally, normally, often, regularly, routinely, usually. Idioms: as usual, per usual. Seebig/small/amount, usual/unusual.